PT-2016-7442 · X.Org Foundation+3 · Libxrender+3

Tobias Stoeckmann · Published 2016-10-12 · Updated 2022-05-23 · CVE-2016-7949

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions libXrender versions prior to 0.9.10

Description The issue involves multiple buffer overflows in the XvQueryAdaptors and XvQueryEncodings functions. These buffer overflows can be triggered by remote X servers via vectors involving length fields, allowing out-of-bounds write operations.

Recommendations For libXrender versions prior to 0.9.10, update to version 0.9.10 or later to resolve the issue. As a temporary workaround, consider restricting access to the XvQueryAdaptors and XvQueryEncodings functions until a patch is available.

Fix

RCE

Memory Corruption

Weakness Enumeration

CWE-20

CWE-787

Related Identifiers

ALT-PU-2020-3325

ALT-PU-2020-3331

ALT-PU-2020-3400

CVE-2016-7949

DLA-664-1

MGASA-2018-0011

SUSE-SU-2016:2505-1

SUSE-SU-2016:2828-1

SUSE-SU-2016:3115-1

SUSE-SU-2016_3115-1

USN-5436-1

Affected Products

Alt Linux

Suse

Ubuntu

Libxrender

References · 58

• https://advisories.mageia.org/MGASA-2018-0011.html · Security Note
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WCKZFMZ76APAVMIRCUKKHEB4GAS7ZUP · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2016-7949 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-7949 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2016:2828-1 · Vendor Advisory
• https://security.gentoo.org/glsa/201704-03 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7950 · Security Note
• https://errata.altlinux.org/ALT-PU-2020-3325 · Vendor Advisory
• https://osv.dev/vulnerability/USN-5436-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-7949 · Security Note
• https://osv.dev/vulnerability/MGASA-2018-0011 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2016:3115-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-7950 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7949 · Security Note
• https://errata.altlinux.org/ALT-PU-2020-3400 · Vendor Advisory