Advisories » MGASA-2017-0366

Updated x11-server packages fix security vulnerabilities

Publication date: 09 Oct 2017
Modification date: 09 Oct 2017
Type: security
Affected Mageia releases : 5 , 6
CVE: CVE-2017-13721 , CVE-2017-13723

Description

In Xext/shm, the shmseg resource id can belong to a non-existing client
and abort X server with FatalError "client not in use", or overwrite
existing segment of another existing client (CVE-2017-13721).

Generating strings for XKB data used a single shared static buffer,
which offered several opportunities for errors when strings end up
longer than anticipated (CVE-2017-13723).
                

References

• https://bugs.mageia.org/show_bug.cgi?id=21820
• http://openwall.com/lists/oss-security/2017/10/04/10
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13721
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13723

SRPMS

5/core

• x11-server-1.16.4-2.3.mga5

6/core

• x11-server-1.19.4-1.mga6