CVE-2010-4051
The regcomp implementation in the GNU C Library (aka glibc or libc6) through 2.11.3, and 2.12.x...
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."
Exploit likelihood
What each source reports
NVD Score used
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."
- Record
CVE-2010-4051- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
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."
- Record
CVE-2010-4051- Updated
- 2026-11-02
EUVDEUVD-2010-4027 No score
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."
- Record
EUVD-2010-4027- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-6429-fc4p-f7q7 No score
The regcomp implementation in the GNU C Library (aka glibc or libc6) through 2.11.3, and 2.12.x...
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."
- Record
GHSA-6429-fc4p-f7q7- Updated
- 2026-11-02
OSVBELL-CVE-2010-4051
CVE-2010-4051 does not affect BellSoft software
- Record
BELL-CVE-2010-4051- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
OSV No score
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."
- Record
CVE-2010-4051- Updated
- 2026-11-02
OSVDEBIAN-CVE-2010-4051 No score
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."
- Record
DEBIAN-CVE-2010-4051- Updated
- 2026-11-02
Affected products
Affected packages
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | GNU libc/regcomp(3) - Multiple Vulnerabilities | 2011-01-07 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2010-4051 is a medium vulnerability (CVSS 5.0) in Gnu Glibc, published January 13, 2011. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 40.0%, the 98th percentile. Fixed in glibc 2.19-4.
References
secunia.com/advisories/42547
securitytracker.com/id?1024832
seclists.org/fulldisclosure/2011/Jan/78
kb.cert.org/vuls/id/912279
securityfocus.com/bid/45233
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cxib.net/stuff/proftpd.gnu.c
exploit-db.com/exploits/15935
securityreason.com/securityalert/8003
bugzilla.redhat.com/show_bug.cgi?id=645859
lists.apache.org/thread.html/rc713534b10f9daeee2e0990239fa407e2118e4aa9e88a7041177497c%40%3Cissues.guacamole.apache.org%3E
nvd.nist.gov/vuln/detail/CVE-2010-4051
github.com/advisories/GHSA-6429-fc4p-f7q7
docs.bell-sw.com/security/cves/CVE-2010-4051
security-tracker.debian.org/tracker/CVE-2010-4051