CVE-2010-4052

Published: 13 January 2011

Stack consumption vulnerability in the regcomp implementation in the GNU C Library (aka glibc or libc6) through 2.11.3, and 2.12.x through 2.12.2, allows context-dependent attackers to cause a denial of service (resource exhaustion) via a regular expression containing adjacent repetition operators, as demonstrated by a {10,}{10,}{10,}{10,} sequence in the proftpd.gnu.c exploit for ProFTPD.

Notes

debatable wheither this is a security issue or not.
application should impose limits and filtering. Ignoring.

Status

References

• http://www.kb.cert.org/vuls/id/912279
• http://seclists.org/fulldisclosure/2011/Jan/78
• https://www.cve.org/CVERecord?id=CVE-2010-4052
• NVD
• Launchpad
• Debian

Bugs

• https://bugzilla.redhat.com/show_bug.cgi?id=645859
• https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/343894