CVE-2016-7944

Publication date 13 December 2016

Last updated 25 August 2025

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

Description

Integer overflow in X.org libXfixes before 5.0.3 on 32-bit platforms might allow remote X servers to gain privileges via a length value of INT_MAX, which triggers the client to stop reading data and get out of sync.

Read the notes from the security team

Status

Package Ubuntu Release Status
libxfixes 22.04 LTS jammy
Fixed 1:5.0.3-1
21.10 impish
Fixed 1:5.0.3-1
21.04 hirsute
Fixed 1:5.0.3-1
20.10 groovy
Fixed 1:5.0.3-1
20.04 LTS focal
Fixed 1:5.0.3-1
19.10 eoan
Fixed 1:5.0.3-1
19.04 disco
Fixed 1:5.0.3-1
18.10 cosmic
Fixed 1:5.0.3-1
18.04 LTS bionic
Fixed 1:5.0.3-1
17.10 artful Ignored end of life
17.04 zesty Ignored end of life
16.10 yakkety Ignored end of life
16.04 LTS xenial
Fixed 1:5.0.1-2ubuntu0.1~esm1
14.04 LTS trusty Not in release
12.04 LTS precise Ignored end of life

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Notes

msalvatore

patch released in 1:5.0.1-2+deb8u1

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
libxfixes

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references