glibc extend_buffers() denial of service
|glibc-extendbuffers-dos (81707)||Medium Risk|
The GNU C Library (glibc) is vulnerable to a denial of service, caused by improper bounds checking by the extend_buffers() function. By sending specially-crafted data, a remote attacker could overflow a buffer and cause the application to crash.
Denial of Service
Apply the appropriate patch for your system. See References.
- GNU C Library Web page: GNU C Library.
- oss-sec Mailing List: Wed, 30 Jan 2013: CVE Request -- glibc: DoS due to a buffer overrun in regexp matcher by processing multibyte characters.
- BID-57638: GNU glibc 'regexec.c' Buffer Overflow Vulnerability
- CVE-2013-0242: 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.
- RHSA-2013-0769: Low: glibc security and bug fix update
- RHSA-2013-1605: Moderate: glibc security, bug fix, and enhancement update
- SA51951: GNU C Library "extend_buffers()" Regular Expression Handling Denial of Service Vulnerability
- GNU glibc 2.17
- RedHat Enterprise Linux 5 Client
- RedHat Enterprise Linux 5
- RedHat Enterprise Linux 6 Server
- RedHat Enterprise Linux 6 Workstation
- RedHat Enterprise Linux Desktop 6
- RedHat Enterprise Linux HPC Node 6
Jan 30, 2013
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.