CVE-2013-0254

Publication date 6 February 2013

Last updated 24 July 2024

Ubuntu priority

Description

The QSharedMemory class in Qt 5.0.0, 4.8.x before 4.8.5, 4.7.x before 4.7.6, and other versions including 4.4.0 uses weak permissions (world-readable and world-writable) for shared memory segments, which allows local users to read sensitive information or modify critical program data, as demonstrated by reading a pixmap being sent to an X server.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
qt4-x11	12.10 quantal	Fixed in 4:4.8.3+dfsg-0ubuntu3.1
	12.04 LTS precise	Fixed in 4:4.8.1-0ubuntu4.4
	11.10 oneiric	Fixed in 4:4.7.4-0ubuntu8.3
	10.04 LTS lucid	Fixed in 4:4.6.2-0ubuntu5.6
	8.04 LTS hardy	Ignored end of life

Notes

seth-arnold

"forthcoming 4.8.5, and the 4.7.6 [releases]"

Patch details

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

Package	Patch details
qt4-x11	Upstream: 20b26bd Upstream: 57756e7

References

Related Ubuntu Security Notices (USN)

USN-1723-1
Qt vulnerabilities
14 February 2013