Executive Summary

Informations
Name CVE-2015-7550 First vendor Publication 2016-02-07
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 5.5
Base Score 5.5 Environmental Score 5.5
impact SubScore 3.6 Temporal Score 5.5
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 4.9 Attack Range Local
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

The keyctl_read_key function in security/keys/keyctl.c in the Linux kernel before 4.3.4 does not properly use a semaphore, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted application that leverages a race condition between keyctl_revoke and keyctl_read calls.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7550

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-362 Race Condition

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 2364

Nessus® Vulnerability Scanner

Date Description
2016-09-02 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-2074-1.nasl - Type : ACT_GATHER_INFO
2016-05-04 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-1203-1.nasl - Type : ACT_GATHER_INFO
2016-04-01 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-0911-1.nasl - Type : ACT_GATHER_INFO
2016-03-04 Name : The remote Fedora host is missing a security update.
File : fedora_2015-c59710b05d.nasl - Type : ACT_GATHER_INFO
2016-03-04 Name : The remote Fedora host is missing a security update.
File : fedora_2015-c1c2f5e168.nasl - Type : ACT_GATHER_INFO
2016-02-29 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2910-2.nasl - Type : ACT_GATHER_INFO
2016-02-29 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-0585-1.nasl - Type : ACT_GATHER_INFO
2016-02-23 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2907-1.nasl - Type : ACT_GATHER_INFO
2016-02-23 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2911-1.nasl - Type : ACT_GATHER_INFO
2016-02-23 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2910-1.nasl - Type : ACT_GATHER_INFO
2016-02-23 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2907-2.nasl - Type : ACT_GATHER_INFO
2016-02-08 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-136.nasl - Type : ACT_GATHER_INFO
2016-02-03 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-124.nasl - Type : ACT_GATHER_INFO
2016-02-03 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-116.nasl - Type : ACT_GATHER_INFO
2016-02-02 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-2890-3.nasl - Type : ACT_GATHER_INFO
2016-02-02 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2890-2.nasl - Type : ACT_GATHER_INFO
2016-02-02 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2890-1.nasl - Type : ACT_GATHER_INFO
2016-02-02 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2888-1.nasl - Type : ACT_GATHER_INFO
2016-01-20 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-0168-1.nasl - Type : ACT_GATHER_INFO
2016-01-06 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3434.nasl - Type : ACT_GATHER_INFO
2016-01-06 Name : The remote Debian host is missing a security update.
File : debian_DLA-378.nasl - Type : ACT_GATHER_INFO
2015-12-21 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3426.nasl - Type : ACT_GATHER_INFO

Sources (Detail)

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b4a...
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
http://www.debian.org/security/2016/dsa-3434
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.4
http://www.securityfocus.com/bid/79903
http://www.ubuntu.com/usn/USN-2888-1
http://www.ubuntu.com/usn/USN-2890-1
http://www.ubuntu.com/usn/USN-2890-2
http://www.ubuntu.com/usn/USN-2890-3
http://www.ubuntu.com/usn/USN-2911-1
http://www.ubuntu.com/usn/USN-2911-2
https://bugzilla.redhat.com/show_bug.cgi?id=1291197
https://github.com/torvalds/linux/commit/b4a1b4f5047e4f54e194681125c74c0aa64d...
https://security-tracker.debian.org/tracker/CVE-2015-7550
Source Url

Alert History

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Date Informations
2024-11-28 12:50:23
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2023-12-29 01:30:42
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2022-10-11 12:27:09
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2018-11-17 12:06:00
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2018-03-28 12:06:54
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2016-12-06 09:24:16
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2016-12-03 09:24:27
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2016-11-29 00:25:34
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2016-10-12 12:03:10
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2016-02-09 13:27:38
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2016-02-08 09:26:14
  • First insertion