SB2017070111 - Input validation error in GNU Glibc
Published: July 1, 2017 Updated: June 28, 2025
Security Bulletin ID
SB2017070111
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2012-6656)
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
iconvdata/ibm930.c in GNU C Library (aka glibc) before 2.16 allows context-dependent attackers to cause a denial of service (out-of-bounds read) via a multibyte character value of "0xffff" to the iconv function when converting IBM930 encoded data to UTF-8.
Remediation
Install update from vendor's website.
References
- http://www.debian.org/security/2015/dsa-3142
- http://www.mandriva.com/security/advisories?name=MDVSA-2014:175
- http://www.openwall.com/lists/oss-security/2014/08/29/3
- http://www.openwall.com/lists/oss-security/2014/09/02/1
- http://www.securityfocus.com/bid/69472
- http://www.ubuntu.com/usn/USN-2432-1
- https://security.gentoo.org/glsa/201503-04
- https://sourceware.org/bugzilla/show_bug.cgi?id=14134
- https://sourceware.org/git/?p=glibc.git;a=commit;h=6e230d11837f3ae7b375ea69d7905f0d18eb79e5