SB2013020806 - Buffer overflow in GNU Glibc
Published: February 8, 2013 Updated: August 11, 2020
Security Bulletin ID
SB2013020806
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-2013-0242)
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.
Buffer overflow in the extend_buffers function in the regular expression matcher (posix/regexec.c) in glibc, possibly 2.17 and earlier, allows context-dependent attackers to cause a denial of service (memory corruption and crash) via crafted multibyte characters.
Remediation
Install update from vendor's website.
References
- http://osvdb.org/89747
- http://rhn.redhat.com/errata/RHSA-2013-0769.html
- http://rhn.redhat.com/errata/RHSA-2013-1605.html
- http://secunia.com/advisories/51951
- http://secunia.com/advisories/55113
- http://sourceware.org/bugzilla/show_bug.cgi?id=15078
- http://sourceware.org/ml/libc-alpha/2013-01/msg00967.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:163
- http://www.openwall.com/lists/oss-security/2013/01/30/5
- http://www.securityfocus.com/bid/57638
- http://www.securitytracker.com/id/1028063
- http://www.ubuntu.com/usn/USN-1991-1
- http://www.vmware.com/security/advisories/VMSA-2014-0008.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/81707
- https://security.gentoo.org/glsa/201503-04