CVE-2010-4051

GNU libc/regcomp - Multiple Vulnerabilities

Severity Score

5.0

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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."

La implementación de regcomp en la librería de C de GNU (también conocido como glibc o libc6) desde v2.11.3 y v2.12.x hasta v2.12.2, permite a atacantes dependientes de contexto provocar una denegación de servicio (caída de la aplicación) a través de una expresión regular que contiene repeticiones delimitadas adjacentes que pretenden evitar la limitación RE_DUP_MAX, como se demuestra mediante la secuencia {10} {10} {10} {10} {10} en el exploit proftpd.gnu.c para ProFTPD, relacionado con un desbordamiento de "RE_DUP_MAX".

Mac OS X, Safari, Firefox and Kaspersky all suffer from a regular expression denial of service condition that was discovered long ago in regcomp().

*Credits: N/A

CVSS Scores

NISTv2 5.0

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2010-10-22 CVE Reserved
2011-01-07 CVE Published
2011-01-07 First Exploit
2023-11-08 EPSS Updated
2024-08-07 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CAPEC

References (13)

URL	Tag	Source
http://securitytracker.com/id?1024832	Vdb Entry
http://www.kb.cert.org/vuls/id/912279	Third Party Advisory
http://www.securityfocus.com/archive/1/515589/100/0/threaded	Mailing List
https://lists.apache.org/thread.html/rc713534b10f9daeee2e0990239fa407e2118e4aa9e88a7041177497c%40%3Cissues.guacamole.apache.org%3E	Mailing List

URL	Date	SRC
https://www.exploit-db.com/exploits/15935	2011-01-07
http://seclists.org/fulldisclosure/2011/Jan/78	2024-08-07
http://securityreason.com/achievement_securityalert/93	2024-08-07
http://securityreason.com/securityalert/8003	2024-08-07
http://www.exploit-db.com/exploits/15935	2024-08-07
http://www.securityfocus.com/bid/45233	2024-08-07
https://bugzilla.redhat.com/show_bug.cgi?id=645859	2024-08-07

URL	Date	SRC
http://cxib.net/stuff/proftpd.gnu.c	2023-11-07

URL	Date	SRC
http://secunia.com/advisories/42547	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				1.00 Search vendor "Gnu" for product "Glibc" and version "1.00"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				1.01 Search vendor "Gnu" for product "Glibc" and version "1.01"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				1.02 Search vendor "Gnu" for product "Glibc" and version "1.02"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				1.03 Search vendor "Gnu" for product "Glibc" and version "1.03"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				1.04 Search vendor "Gnu" for product "Glibc" and version "1.04"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				1.05 Search vendor "Gnu" for product "Glibc" and version "1.05"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				1.06 Search vendor "Gnu" for product "Glibc" and version "1.06"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				1.07 Search vendor "Gnu" for product "Glibc" and version "1.07"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				1.08 Search vendor "Gnu" for product "Glibc" and version "1.08"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				1.09 Search vendor "Gnu" for product "Glibc" and version "1.09"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				1.09.1 Search vendor "Gnu" for product "Glibc" and version "1.09.1"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				2.1 Search vendor "Gnu" for product "Glibc" and version "2.1"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				2.1.1 Search vendor "Gnu" for product "Glibc" and version "2.1.1"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				2.1.1.6 Search vendor "Gnu" for product "Glibc" and version "2.1.1.6"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				2.1.2 Search vendor "Gnu" for product "Glibc" and version "2.1.2"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				2.1.3 Search vendor "Gnu" for product "Glibc" and version "2.1.3"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				2.1.3.10 Search vendor "Gnu" for product "Glibc" and version "2.1.3.10"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				2.1.9 Search vendor "Gnu" for product "Glibc" and version "2.1.9"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				2.10 Search vendor "Gnu" for product "Glibc" and version "2.10"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				2.10.1 Search vendor "Gnu" for product "Glibc" and version "2.10.1"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				2.10.2 Search vendor "Gnu" for product "Glibc" and version "2.10.2"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				2.11 Search vendor "Gnu" for product "Glibc" and version "2.11"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				2.11.1 Search vendor "Gnu" for product "Glibc" and version "2.11.1"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				2.11.2 Search vendor "Gnu" for product "Glibc" and version "2.11.2"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				2.11.3 Search vendor "Gnu" for product "Glibc" and version "2.11.3"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				2.12.0 Search vendor "Gnu" for product "Glibc" and version "2.12.0"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				2.12.1 Search vendor "Gnu" for product "Glibc" and version "2.12.1"		-		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				2.12.2 Search vendor "Gnu" for product "Glibc" and version "2.12.2"		-		Affected