libXcursor up to 1.1.14 library.c _XcursorThemeInherits memory corruption

Summaryinfo

A vulnerability classified as critical has been found in libXcursor up to 1.1.14. Impacted is the function _XcursorThemeInherits of the file library.c. Performing a manipulation results in memory corruption. This vulnerability is reported as CVE-2015-9262. The attack is possible to be carried out remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in libXcursor up to 1.1.14. This affects the function _XcursorThemeInherits of the file library.c. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

_XcursorThemeInherits in library.c in libXcursor before 1.1.15 allows remote attackers to cause denial of service or potentially code execution via a one-byte heap overflow.

The bug was discovered 08/22/2018. The weakness was disclosed 08/01/2018 (Website). The advisory is shared at bugs.freedesktop.org. This vulnerability is uniquely identified as CVE-2015-9262 since 08/01/2018. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 111982 (Debian DLA-1469-1 : libxcursor security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 351517 (Amazon Linux Security Advisory for libXcursor: ALAS2-2019-1173).

Upgrading to version 1.1.15 eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (111982). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

• libXcursor

Version

• 1.1.0
• 1.1.1
• 1.1.2
• 1.1.3
• 1.1.4
• 1.1.5
• 1.1.6
• 1.1.7
• 1.1.8
• 1.1.9
• 1.1.10
• 1.1.11
• 1.1.12
• 1.1.13
• 1.1.14

CPE 2.3info

• 🔍
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CPE 2.2info

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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