Advisories » MGASA-2014-0496

Updated glibc packages fix CVE-2014-7817

Publication date: 26 Nov 2014
Modification date: 26 Nov 2014
Type: security
Affected Mageia releases : 3 , 4
CVE: CVE-2014-7817

Description

The function wordexp() fails to properly handle the WRDE_NOCMD
flag when processing arithmetic inputs in the form of "$((... ``))"
where "..." can be anything valid. The backticks in the arithmetic
epxression are evaluated by in a shell even if WRDE_NOCMD forbade
command substitution. This allows an attacker to attempt to pass
dangerous commands via constructs of the above form, and bypass
the WRDE_NOCMD flag. This update fixes the issue (CVE-2014-7817).
                

References

• https://bugs.mageia.org/show_bug.cgi?id=14651
• https://bugzilla.redhat.com/show_bug.cgi?id=1157689
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-7817

SRPMS

4/core

• glibc-2.18-9.5.mga4

3/core

• glibc-2.17-7.6.mga3