Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title ARM mbed TLS vulnerabilities
Informations
NameUSN-4267-1First vendor Publication2020-02-05
VendorUbuntuLast vendor Modification2020-02-05
Severity (Vendor) N/ARevisionN/A

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score7.5Attack RangeNetwork
Cvss Impact Score6.4Attack ComplexityLow
Cvss Expoit Score10AuthenticationNone Required
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in mbedtls.

Software Description: - mbedtls: lightweight crypto and SSL/TLS library - crypto library

Details:

It was discovered that mbedtls has a bounds-check bypass through an integer overflow that can be used by an attacked to execute arbitrary code or cause a denial of service. (CVE-2017-18187)

It was discovered that mbedtls has a vulnerability where an attacker could execute arbitrary code or cause a denial of service (buffer overflow) via a crafted certificate chain that is mishandled during RSASSA-PSS signature verification within a TLS or DTLS session. (CVE-2018-0487)

It was discovered that mbedtls has a vulnerability where an attacker could execute arbitrary code or cause a denial of service (heap corruption) via a crafted application packet within a TLS or DTLS session. (CVE-2018-0488)

It was discovered that mbedtls has a vulnerability that allows remote attackers to achieve partial plaintext recovery (for a CBC based ciphersuite) via a timing-based side-channel attack. (CVE-2018-0497)

It was discovered that mbedtls has a vulnerability that allows local users to achieve partial plaintext recovery (for a CBC based ciphersuite) via a cache-based side-channel attack. (CVE-2018-0498)

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 16.04 LTS:
libmbedcrypto0 2.2.1-2ubuntu0.3
libmbedtls10 2.2.1-2ubuntu0.3
libmbedx509-0 2.2.1-2ubuntu0.3

In general, a standard system update will make all the necessary changes.

References:
https://usn.ubuntu.com/4267-1
CVE-2017-18187, CVE-2018-0487, CVE-2018-0488, CVE-2018-0497,
CVE-2018-0498

Package Information:
https://launchpad.net/ubuntu/+source/mbedtls/2.2.1-2ubuntu0.3

Original Source

Url : http://www.ubuntu.com/usn/USN-4267-1

CWE : Common Weakness Enumeration

%idName
67 %CWE-119Failure to Constrain Operations within the Bounds of a Memory Buffer
33 %CWE-190Integer Overflow or Wraparound (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application80
Os2

Nessus® Vulnerability Scanner

DateDescription
2019-01-03Name : The remote Fedora host is missing one or more security updates.
File : fedora_2018-5d6e80ab82.nasl - Type : ACT_GATHER_INFO
2019-01-03Name : The remote Fedora host is missing one or more security updates.
File : fedora_2018-c6b5117772.nasl - Type : ACT_GATHER_INFO
2018-09-27Name : The remote Debian host is missing a security update.
File : debian_DLA-1518.nasl - Type : ACT_GATHER_INFO
2018-09-17Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4296.nasl - Type : ACT_GATHER_INFO
2018-08-13Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_f4876dd49ca811e8aa170011d823eebd.nasl - Type : ACT_GATHER_INFO
2018-04-23Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201804-19.nasl - Type : ACT_GATHER_INFO
2018-03-22Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4147.nasl - Type : ACT_GATHER_INFO
2018-03-16Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4138.nasl - Type : ACT_GATHER_INFO
2018-03-12Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_c2f107e1249311e8b3e8001cc0382b2f.nasl - Type : ACT_GATHER_INFO
2018-03-01Name : The remote Fedora host is missing a security update.
File : fedora_2018-9817f1dafa.nasl - Type : ACT_GATHER_INFO

Alert History

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0
DateInformations
2020-02-05 21:18:52
  • First insertion