CVE-2010-4051

Description

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 (application crash) via a regular expression containing adjacent bounded repetitions that bypass the intended RE_DUP_MAX limitation, as demonstrated by a {10,}{10,}{10,}{10,}{10,} sequence in the proftpd.gnu.c exploit for ProFTPD, related to a "RE_DUP_MAX overflow."

How to fix CVE-2010-4051

To remediate CVE-2010-4051, upgrade the affected package to a fixed version below.

• Debian/glibc—upgrade to 2.19-4 or later

Is CVE-2010-4051 being exploited?

Low — EPSS is 4.7%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• from 0, < 2.19-4

References (1)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2010-4051