Stack-based buffer overflow in string/strcoll_l.c in the GNU C Library (aka glibc or libc6) 2.17 and earlier allows context-dependent attackers to cause a denial of service (crash) or possibly execute arbitrary code via a long string that triggers a malloc failure and use of the alloca function.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| http://www.ubuntu.com/usn/USN-1991-1 | vendor advisory |
| http://www.mandriva.com/security/advisories?name=MDVSA-2013:284 | vendor advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=858238 | |
| http://sourceware.org/bugzilla/show_bug.cgi?id=14547 | patch exploit |
| http://www.openwall.com/lists/oss-security/2012/09/13/16 | mailing list |
| https://security.gentoo.org/glsa/201503-04 | vendor advisory |
| http://www.mandriva.com/security/advisories?name=MDVSA-2013:283 | vendor advisory |