CVE-2011-2692

Publication date 17 July 2011

Last updated 25 August 2025

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

8.8 · High

Score breakdown

Description

The png_handle_sCAL function in pngrutil.c in libpng 1.0.x before 1.0.55, 1.2.x before 1.2.45, 1.4.x before 1.4.8, and 1.5.x before 1.5.4 does not properly handle invalid sCAL chunks, which allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly have unspecified other impact via a crafted PNG image that triggers the reading of uninitialized memory.

Read the notes from the security team

Status

No maintained releases are affected by this CVE.

Package Ubuntu Release Status
chromium-browser 12.04 LTS precise
Not affected
11.10 oneiric
Fixed 14.0.835.202~r103287-0ubuntu1
11.04 natty
Fixed 14.0.835.202~r103287-0ubuntu0.11.04.1
10.10 maverick
Fixed 14.0.835.202~r103287-0ubuntu0.10.10.1
10.04 LTS lucid
Fixed 14.0.835.202~r103287-0ubuntu0.10.04.2
8.04 LTS hardy Not in release
firefox 12.04 LTS precise
Fixed 8.0~b4+build1-0ubuntu2
11.10 oneiric
Fixed 8.0+build1-0ubuntu0.11.10.1
11.04 natty
Fixed 8.0+build1-0ubuntu0.11.04.1
10.10 maverick Ignored end of life
10.04 LTS lucid
Fixed 10.0+build1-0ubuntu0.10.04.2
8.04 LTS hardy Ignored end of life
libpng 12.04 LTS precise
Not affected
11.10 oneiric
Not affected
11.04 natty
Fixed 1.2.44-1ubuntu3.1
10.10 maverick
Fixed 1.2.44-1ubuntu0.1
10.04 LTS lucid
Fixed 1.2.42-1ubuntu2.2
8.04 LTS hardy
Fixed 1.2.15~beta5-3ubuntu0.4

Notes

jdstrand

firefox 3.6.23 has 1.2.35 and 7.0.1 has 1.4.7

micahg

firefox 8 will have 1.4.8

Patch details

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

Package Patch details
libpng

Severity score breakdown

Parameter Value
Base score 8.8 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references