SB2014120517 - Buffer overflow in GNU Glibc
Published: December 5, 2014 Updated: August 9, 2020
Security Bulletin ID
SB2014120517
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Buffer overflow (CVE-ID: CVE-2014-6040)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
GNU C Library (aka glibc) before 2.20 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via a multibyte character value of "0xffff" to the iconv function when converting (1) IBM933, (2) IBM935, (3) IBM937, (4) IBM939, or (5) IBM1364 encoded data to UTF-8.
Remediation
Install update from vendor's website.
References
- http://linux.oracle.com/errata/ELSA-2015-0016.html
- http://secunia.com/advisories/62100
- http://secunia.com/advisories/62146
- http://ubuntu.com/usn/usn-2432-1
- 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
- https://security.gentoo.org/glsa/201602-02
- https://sourceware.org/bugzilla/show_bug.cgi?id=17325
- https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=41488498b6