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Summary

Detail
Vendor Canonical First view 2014-12-12
Product Ubuntu Linux Last view 2021-02-10
Version 16.04 Type Os
Update *  
Edition *  
Language *  
Sofware Edition lts  
Target Software *  
Target Hardware *  
Other *  
 
CPE Product cpe:2.3:o:canonical:ubuntu_linux

Activity : Overall

Related : CVE

This CPE have more than 25 Relations. If you want to see a complete summary for this CPE, please contact us.
  Date Alert Description
4.4 2021-02-10 CVE-2020-16120

Overlayfs did not properly perform permission checking when copying up files in an overlayfs and could be exploited from within a user namespace, if, for example, unprivileged user namespaces were allowed. It was possible to have a file not readable by an unprivileged user to be copied to a mountpoint controlled by the user, like a removable device. This was introduced in kernel version 4.19 by commit d1d04ef ("ovl: stack file ops"). This was fixed in kernel version 5.8 by commits 56230d9 ("ovl: verify permissions in ovl_path_open()"), 48bd024 ("ovl: switch to mounter creds in readdir") and 05acefb ("ovl: check permission to open real file"). Additionally, commits 130fdbc ("ovl: pass correct flags for opening real directory") and 292f902 ("ovl: call secutiry hook in ovl_real_ioctl()") in kernel 5.8 might also be desired or necessary. These additional commits introduced a regression in overlay mounts within user namespaces which prevented access to files with ownership outside of the user namespace. This regression was mitigated by subsequent commit b6650da ("ovl: do not fail because of O_NOATIMEi") in kernel 5.11.

7.8 2021-01-14 CVE-2020-16119

Use-after-free vulnerability in the Linux kernel exploitable by a local attacker due to reuse of a DCCP socket with an attached dccps_hc_tx_ccid object as a listener after being released. Fixed in Ubuntu Linux kernel 5.4.0-51.56, 5.3.0-68.63, 4.15.0-121.123, 4.4.0-193.224, 3.13.0.182.191 and 3.2.0-149.196.

5.5 2020-12-09 CVE-2020-27349

Aptdaemon performed policykit checks after interacting with potentially untrusted files with elevated privileges. This affected versions prior to 1.1.1+bzr982-0ubuntu34.1, 1.1.1+bzr982-0ubuntu32.3, 1.1.1+bzr982-0ubuntu19.5, 1.1.1+bzr982-0ubuntu14.5.

3.8 2020-12-09 CVE-2020-16128

The aptdaemon DBus interface disclosed file existence disclosure by setting Terminal/DebconfSocket properties, aka GHSL-2020-192 and GHSL-2020-196. This affected versions prior to 1.1.1+bzr982-0ubuntu34.1, 1.1.1+bzr982-0ubuntu32.3, 1.1.1+bzr982-0ubuntu19.5, 1.1.1+bzr982-0ubuntu14.5.

4.7 2020-12-04 CVE-2020-16123

An Ubuntu-specific patch in PulseAudio created a race condition where the snap policy module would fail to identify a client connection from a snap as coming from a snap if SCM_CREDENTIALS were missing, allowing the snap to connect to PulseAudio without proper confinement. This could be exploited by an attacker to expose sensitive information. Fixed in 1:13.99.3-1ubuntu2, 1:13.99.2-1ubuntu2.1, 1:13.99.1-1ubuntu3.8, 1:11.1-1ubuntu7.11, and 1:8.0-0ubuntu3.15.

7.8 2020-11-07 CVE-2020-16122

PackageKit's apt backend mistakenly treated all local debs as trusted. The apt security model is based on repository trust and not on the contents of individual files. On sites with configured PolicyKit rules this may allow users to install malicious packages.

6.1 2020-10-16 CVE-2020-15157

In containerd (an industry-standard container runtime) before version 1.2.14 there is a credential leaking vulnerability. If a container image manifest in the OCI Image format or Docker Image V2 Schema 2 format includes a URL for the location of a specific image layer (otherwise known as a “foreign layer†), the default containerd resolver will follow that URL to attempt to download it. In v1.2.x but not 1.3.0 or later, the default containerd resolver will provide its authentication credentials if the server where the URL is located presents an HTTP 401 status code along with registry-specific HTTP headers. If an attacker publishes a public image with a manifest that directs one of the layers to be fetched from a web server they control and they trick a user or system into pulling the image, they can obtain the credentials used for pulling that image. In some cases, this may be the user's username and password for the registry. In other cases, this may be the credentials attached to the cloud virtual instance which can grant access to other cloud resources in the account. The default containerd resolver is used by the cri-containerd plugin (which can be used by Kubernetes), the ctr development tool, and other client programs that have explicitly linked against it. This vulnerability has been fixed in containerd 1.2.14. containerd 1.3 and later are not affected. If you are using containerd 1.3 or later, you are not affected. If you are using cri-containerd in the 1.2 series or prior, you should ensure you only pull images from trusted sources. Other container runtimes built on top of containerd but not using the default resolver (such as Docker) are not affected.

6.6 2020-10-07 CVE-2020-14355

Multiple buffer overflow vulnerabilities were found in the QUIC image decoding process of the SPICE remote display system, before spice-0.14.2-1. Both the SPICE client (spice-gtk) and server are affected by these flaws. These flaws allow a malicious client or server to send specially crafted messages that, when processed by the QUIC image compression algorithm, result in a process crash or potential code execution.

5.5 2020-09-16 CVE-2020-14392

An untrusted pointer dereference flaw was found in Perl-DBI < 1.643. A local attacker who is able to manipulate calls to dbd_db_login6_sv() could cause memory corruption, affecting the service's availability.

7.8 2020-09-15 CVE-2020-14345

A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Out-Of-Bounds access in XkbSetNames function may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

3.7 2020-09-09 CVE-2020-1968

The Raccoon attack exploits a flaw in the TLS specification which can lead to an attacker being able to compute the pre-master secret in connections which have used a Diffie-Hellman (DH) based ciphersuite. In such a case this would result in the attacker being able to eavesdrop on all encrypted communications sent over that TLS connection. The attack can only be exploited if an implementation re-uses a DH secret across multiple TLS connections. Note that this issue only impacts DH ciphersuites and not ECDH ciphersuites. This issue affects OpenSSL 1.0.2 which is out of support and no longer receiving public updates. OpenSSL 1.1.1 is not vulnerable to this issue. Fixed in OpenSSL 1.0.2w (Affected 1.0.2-1.0.2v).

3.3 2020-09-02 CVE-2020-24654

In KDE Ark before 20.08.1, a crafted TAR archive with symlinks can install files outside the extraction directory, as demonstrated by a write operation to a user's home directory.

3.8 2020-08-31 CVE-2020-12829

In QEMU through 5.0.0, an integer overflow was found in the SM501 display driver implementation. This flaw occurs in the COPY_AREA macro while handling MMIO write operations through the sm501_2d_engine_write() callback. A local attacker could abuse this flaw to crash the QEMU process in sm501_2d_operation() in hw/display/sm501.c on the host, resulting in a denial of service.

7.8 2020-08-20 CVE-2020-15862

Net-SNMP through 5.7.3 has Improper Privilege Management because SNMP WRITE access to the EXTEND MIB provides the ability to run arbitrary commands as root.

10 2020-08-17 CVE-2020-1472

An elevation of privilege vulnerability exists when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol (MS-NRPC), aka 'Netlogon Elevation of Privilege Vulnerability'.

7.5 2020-08-12 CVE-2020-12673

In Dovecot before 2.3.11.3, sending a specially formatted NTLM request will crash the auth service because of an out-of-bounds read.

8.8 2020-08-10 CVE-2020-15659

Mozilla developers and community members reported memory safety bugs present in Firefox 78 and Firefox ESR 78.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 79, Firefox ESR < 68.11, Firefox ESR < 78.1, Thunderbird < 68.11, and Thunderbird < 78.1.

3.7 2020-07-30 CVE-2020-16166

The Linux kernel through 5.7.11 allows remote attackers to make observations that help to obtain sensitive information about the internal state of the network RNG, aka CID-f227e3ec3b5c. This is related to drivers/char/random.c and kernel/time/timer.c.

6.4 2020-07-29 CVE-2020-15707

Integer overflows were discovered in the functions grub_cmd_initrd and grub_initrd_init in the efilinux component of GRUB2, as shipped in Debian, Red Hat, and Ubuntu (the functionality is not included in GRUB2 upstream), leading to a heap-based buffer overflow. These could be triggered by an extremely large number of arguments to the initrd command on 32-bit architectures, or a crafted filesystem with very large files on any architecture. An attacker could use this to execute arbitrary code and bypass UEFI Secure Boot restrictions. This issue affects GRUB2 version 2.04 and prior versions.

6.4 2020-07-29 CVE-2020-15706

GRUB2 contains a race condition in grub_script_function_create() leading to a use-after-free vulnerability which can be triggered by redefining a function whilst the same function is already executing, leading to arbitrary code execution and secure boot restriction bypass. This issue affects GRUB2 version 2.04 and prior versions.

6.4 2020-07-29 CVE-2020-15705

GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed. This only affects systems where the kernel signing certificate has been imported directly into the secure boot database and the GRUB image is booted directly without the use of shim. This issue affects GRUB2 version 2.04 and prior versions.

5.9 2020-07-29 CVE-2020-11934

It was discovered that snapctl user-open allowed altering the $XDG_DATA_DIRS environment variable when calling the system xdg-open. OpenURL() in usersession/userd/launcher.go would alter $XDG_DATA_DIRS to append a path to a directory controlled by the calling snap. A malicious snap could exploit this to bypass intended access restrictions to control how the host system xdg-open script opens the URL and, for example, execute a script shipped with the snap without confinement. This issue did not affect Ubuntu Core systems. Fixed in snapd versions 2.45.1ubuntu0.2, 2.45.1+18.04.2 and 2.45.1+20.04.2.

6.8 2020-07-29 CVE-2020-11933

cloud-init as managed by snapd on Ubuntu Core 16 and Ubuntu Core 18 devices was run without restrictions on every boot, which a physical attacker could exploit by crafting cloud-init user-data/meta-data via external media to perform arbitrary changes on the device to bypass intended security mechanisms such as full disk encryption. This issue did not affect traditional Ubuntu systems. Fixed in snapd version 2.45.2, revision 8539 and core version 2.45.2, revision 9659.

5.3 2020-07-28 CVE-2020-15863

hw/net/xgmac.c in the XGMAC Ethernet controller in QEMU before 07-20-2020 has a buffer overflow. This occurs during packet transmission and affects the highbank and midway emulated machines. A guest user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service or potential privileged code execution. This was fixed in commit 5519724a13664b43e225ca05351c60b4468e4555.

6.5 2020-07-22 CVE-2020-6514

Inappropriate implementation in WebRTC in Google Chrome prior to 84.0.4147.89 allowed an attacker in a privileged network position to potentially exploit heap corruption via a crafted SCTP stream.

CWE : Common Weakness Enumeration

This CPE have more than 25 Relations. If you want to see a complete summary for this CPE, please contact us.
%idName
13% (168) CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer
11% (136) CWE-125 Out-of-bounds Read
8% (109) CWE-787 Out-of-bounds Write
6% (84) CWE-476 NULL Pointer Dereference
6% (79) CWE-20 Improper Input Validation
6% (75) CWE-416 Use After Free
5% (67) CWE-200 Information Exposure
5% (64) CWE-190 Integer Overflow or Wraparound
4% (50) CWE-772 Missing Release of Resource after Effective Lifetime
2% (26) CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')
1% (24) CWE-362 Race Condition
1% (16) CWE-284 Access Control (Authorization) Issues
1% (15) CWE-79 Failure to Preserve Web Page Structure ('Cross-site Scripting')
1% (14) CWE-770 Allocation of Resources Without Limits or Throttling
1% (13) CWE-401 Failure to Release Memory Before Removing Last Reference ('Memory L...
1% (13) CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path ...
0% (12) CWE-269 Improper Privilege Management
0% (12) CWE-254 Security Features
0% (11) CWE-415 Double Free
0% (11) CWE-330 Use of Insufficiently Random Values
0% (11) CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflo...
0% (10) CWE-264 Permissions, Privileges, and Access Controls
0% (10) CWE-59 Improper Link Resolution Before File Access ('Link Following')
0% (9) CWE-369 Divide By Zero
0% (9) CWE-346 Origin Validation Error

SAINT Exploits

Description Link
Exim SMTP listener base64d function one-character buffer overflow More info here
libssh authentication bypass More info here
Linux Dirty COW Local File Overwrite More info here

Snort® IPS/IDS

This CPE have more than 25 Relations. If you want to see a complete summary for this CPE, please contact us.
Date Description
2021-01-12 Apache Server mod_proxy Error Page cross site scripting attempt
RuleID : 56563 - Type : SERVER-WEBAPP - Revision : 1
2020-12-10 Microsoft Windows malicious Netlogon NetrServerAuthenticate3 request attempt
RuleID : 56290 - Type : OS-WINDOWS - Revision : 6
2020-10-22 Microsoft Windows NetrServerReqChallenge RPC transport sign and seal disablin...
RuleID : 55802 - Type : OS-WINDOWS - Revision : 1
2020-10-20 Microsoft Windows Netlogon crafted NetrServerAuthenticate elevation of privil...
RuleID : 55704 - Type : OS-WINDOWS - Revision : 2
2020-10-20 Microsoft Windows Netlogon crafted NetrServerReqChallenge elevation of privil...
RuleID : 55703 - Type : OS-WINDOWS - Revision : 2
2020-07-07 Apache Tomcat FileStore directory traversal attempt
RuleID : 54162 - Type : SERVER-WEBAPP - Revision : 1
2020-03-17 Apple Safari Webkit WebCore memory corruption attempt
RuleID : 53101 - Type : BROWSER-WEBKIT - Revision : 1
2020-03-17 Apple Safari Webkit WebCore memory corruption attempt
RuleID : 53100 - Type : BROWSER-WEBKIT - Revision : 1
2020-12-05 TRUFFLEHUNTER TALOS-2019-0973 attack attempt
RuleID : 52571 - Type : FILE-OTHER - Revision : 1
2020-12-05 TRUFFLEHUNTER TALOS-2019-0973 attack attempt
RuleID : 52570 - Type : FILE-OTHER - Revision : 1
2020-02-04 dnsmasq crafted OPT record denial of service attempt
RuleID : 52524 - Type : PROTOCOL-DNS - Revision : 1
2020-01-07 LibVNCServer file transfer extension heap buffer overflow attempt
RuleID : 52397 - Type : SERVER-OTHER - Revision : 1
2020-01-07 LibVNCServer file transfer extension heap buffer overflow attempt
RuleID : 52396 - Type : SERVER-OTHER - Revision : 1
2020-01-07 LibVNCServer file transfer extension heap buffer overflow attempt
RuleID : 52395 - Type : SERVER-OTHER - Revision : 1
2020-01-07 LibVNCServer file transfer extension heap buffer overflow attempt
RuleID : 52394 - Type : SERVER-OTHER - Revision : 1
2020-01-07 LibVNCServer file transfer extension heap buffer overflow attempt
RuleID : 52393 - Type : SERVER-OTHER - Revision : 1
2020-01-03 ISC BIND deny-answer-aliases denial of service attempt
RuleID : 52344 - Type : SERVER-OTHER - Revision : 1
2020-01-03 ISC BIND deny-answer-aliases denial of service attempt
RuleID : 52343 - Type : SERVER-OTHER - Revision : 1
2020-01-03 Imagemagick XBM tranformation information leak attempt
RuleID : 52312 - Type : FILE-IMAGE - Revision : 1
2019-12-10 Libmspack cabd_sys_read_block off-by-one heap overflow attempt
RuleID : 52133 - Type : FILE-OTHER - Revision : 2
2019-12-10 Libmspack cabd_sys_read_block off-by-one heap overflow attempt
RuleID : 52132 - Type : FILE-OTHER - Revision : 2
2019-12-10 PHP FPM env_path_info buffer underflow attempt
RuleID : 52123 - Type : SERVER-WEBAPP - Revision : 1
2019-12-03 ZeroMQ libzmq stack-based buffer overflow attempt
RuleID : 52037 - Type : SERVER-OTHER - Revision : 1
2019-11-26 LibreOffice office document arbitrary script execution attempt
RuleID : 52000 - Type : FILE-OTHER - Revision : 1
2019-11-26 LibreOffice office document arbitrary script execution attempt
RuleID : 51999 - Type : FILE-OTHER - Revision : 1

Nessus® Vulnerability Scanner

This CPE have more than 25 Relations. If you want to see a complete summary for this CPE, please contact us.
id Description
2019-01-18 Name: The remote Fedora host is missing a security update.
File: fedora_2019-a8ffcff7ee.nasl - Type: ACT_GATHER_INFO
2019-01-17 Name: The remote CentOS host is missing one or more security updates.
File: centos_RHSA-2019-0059.nasl - Type: ACT_GATHER_INFO
2019-01-17 Name: The remote Fedora host is missing one or more security updates.
File: fedora_2019-509c133845.nasl - Type: ACT_GATHER_INFO
2019-01-17 Name: The remote Fedora host is missing one or more security updates.
File: fedora_2019-f812c9fb22.nasl - Type: ACT_GATHER_INFO
2019-01-17 Name: The remote database server is affected by multiple vulnerabilities.
File: mysql_5_6_43.nasl - Type: ACT_GATHER_INFO
2019-01-17 Name: The remote database server is affected by multiple vulnerabilities.
File: mysql_5_7_25.nasl - Type: ACT_GATHER_INFO
2019-01-17 Name: The remote database server is affected by multiple vulnerabilities.
File: mysql_8_0_14.nasl - Type: ACT_GATHER_INFO
2019-01-16 Name: The remote CentOS host is missing one or more security updates.
File: centos_RHSA-2019-0049.nasl - Type: ACT_GATHER_INFO
2019-01-16 Name: A PHP application running on the remote web server is affected by multiple vu...
File: drupal_8_6_6.nasl - Type: ACT_GATHER_INFO
2019-01-16 Name: The remote Fedora host is missing a security update.
File: fedora_2019-348547a32d.nasl - Type: ACT_GATHER_INFO
2019-01-16 Name: The remote Fedora host is missing a security update.
File: fedora_2019-e6ca5847c7.nasl - Type: ACT_GATHER_INFO
2019-01-16 Name: The remote Fedora host is missing a security update.
File: fedora_2019-f6ff819834.nasl - Type: ACT_GATHER_INFO
2019-01-16 Name: The remote database server is affected by multiple vulnerabilities
File: mariadb_10_0_37.nasl - Type: ACT_GATHER_INFO
2019-01-15 Name: The remote Fedora host is missing one or more security updates.
File: fedora_2019-337484d88b.nasl - Type: ACT_GATHER_INFO
2019-01-15 Name: The remote Fedora host is missing one or more security updates.
File: fedora_2019-b0f7a7b74b.nasl - Type: ACT_GATHER_INFO
2019-01-14 Name: The remote Slackware host is missing a security update.
File: Slackware_SSA_2019-011-01.nasl - Type: ACT_GATHER_INFO
2019-01-14 Name: The remote Slackware host is missing a security update.
File: Slackware_SSA_2019-013-01.nasl - Type: ACT_GATHER_INFO
2019-01-14 Name: The remote Virtuozzo host is missing multiple security updates.
File: Virtuozzo_VZA-2016-104.nasl - Type: ACT_GATHER_INFO
2019-01-14 Name: The remote Amazon Linux AMI host is missing a security update.
File: ala_ALAS-2019-1145.nasl - Type: ACT_GATHER_INFO
2019-01-14 Name: The remote Amazon Linux AMI host is missing a security update.
File: ala_ALAS-2019-1146.nasl - Type: ACT_GATHER_INFO
2019-01-14 Name: The remote Debian host is missing a security-related update.
File: debian_DSA-4367.nasl - Type: ACT_GATHER_INFO
2019-01-14 Name: The remote Fedora host is missing a security update.
File: fedora_2019-18b3a10c7f.nasl - Type: ACT_GATHER_INFO
2019-01-11 Name: The remote Virtuozzo host is missing multiple security updates.
File: Virtuozzo_VZA-2018-075.nasl - Type: ACT_GATHER_INFO
2019-01-11 Name: The remote Virtuozzo host is missing a security update.
File: Virtuozzo_VZA-2018-089.nasl - Type: ACT_GATHER_INFO
2019-01-11 Name: The remote Fedora host is missing a security update.
File: fedora_2019-a7b53ed5a3.nasl - Type: ACT_GATHER_INFO