CVE-2010-4051

Public Exploit

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."

5.0

CVSS

Severity: Medium

CVSS 2.0 •

EPSS 4.85% Top 15%

Vendor Advisory secunia.com

Affected: n/a n/a

References

Link	Tags
http://secunia.com/advisories/42547	third party advisory vendor advisory
http://securitytracker.com/id?1024832	vdb entry
http://seclists.org/fulldisclosure/2011/Jan/78	mailing list exploit
http://www.kb.cert.org/vuls/id/912279	third party advisory us government resource
http://www.securityfocus.com/bid/45233	vdb entry exploit
http://www.securityfocus.com/archive/1/515589/100/0/threaded	mailing list
http://cxib.net/stuff/proftpd.gnu.c	patch
http://www.exploit-db.com/exploits/15935	exploit
http://securityreason.com/securityalert/8003	third party advisory exploit
http://securityreason.com/achievement_securityalert/93	third party advisory exploit
https://bugzilla.redhat.com/show_bug.cgi?id=645859	exploit
https://lists.apache.org/thread.html/rc713534b10f9daeee2e0990239fa407e2118e4aa9e88a7041177497c%40%3Cissues.guacamole.apache.org%3E	mailing list

Frequently Asked Questions

What is the severity of CVE-2010-4051?: CVE-2010-4051 has been scored as a medium severity vulnerability.
How to fix CVE-2010-4051?: To fix CVE-2010-4051, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2010-4051 being actively exploited in the wild?: It is possible that CVE-2010-4051 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~5% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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