CVE-2010-4051
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."
Key facts
- CVSS score
- 5.0 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P- EPSS score
- 40.0% (99th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2010-4027)
- Published
- January 13, 2011
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2010-4027 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
- gnu / glibc
References
- http://cxib.net/stuff/proftpd.gnu.c(Patch)
- http://seclists.org/fulldisclosure/2011/Jan/78(Exploit)
- http://secunia.com/advisories/42547(Vendor Advisory)
- http://securityreason.com/achievement_securityalert/93(Exploit)
- http://securityreason.com/securityalert/8003(Exploit)
- http://securitytracker.com/id?1024832
- http://www.exploit-db.com/exploits/15935
- http://www.kb.cert.org/vuls/id/912279(US Government Resource)
- http://www.securityfocus.com/archive/1/515589/100/0/threaded
- http://www.securityfocus.com/bid/45233(Exploit)
- https://bugzilla.redhat.com/show_bug.cgi?id=645859(Exploit)
- https://lists.apache.org/thread.html/rc713534b10f9daeee2e0990239fa407e2118e4aa9e88a7041177497c%40%3Cissues.guacamole.apache.org%3E
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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