CVE-2009-5155

Ubuntu Security Notice USN-4954-1

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In the GNU C Library (aka glibc or libc6) before 2.28, parse_reg_exp in posix/regcomp.c misparses alternatives, which allows attackers to cause a denial of service (assertion failure and application exit) or trigger an incorrect result by attempting a regular-expression match.

En la biblioteca GNU C (también conocida como glibc o libc6), en versiones anteriores a la 2.28, parse_reg_exp en posix/regcomp.c analiza erróneamente las alternativas, lo que permite que los atacantes provoquen una denegación de servicio (fallo de aserción y salida de la aplicación) o desencadenen un resultado incorrecto intentando realizar una coincidencia de expresiones regulares.

Jason Royes and Samuel Dytrych discovered that the memcpy implementation for 32 bit ARM processors in the GNU C Library contained an integer underflow vulnerability. An attacker could possibly use this to cause a denial of service or execute arbitrary code. It was discovered that the POSIX regex implementation in the GNU C Library did not properly parse alternatives. An attacker could use this to cause a denial of service. Various other issues were also addressed.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

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

2019-02-25 CVE Reserved
2019-02-26 CVE Published
2024-08-07 CVE Updated
2024-08-07 First Exploit
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-19: Data Processing Errors

CAPEC

References (12)

URL	Tag	Source
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E	Mailing List
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=eb04c21373e2a2885f3d52ff192b0499afe3c672	X_refsource_misc
https://support.f5.com/csp/article/K64119434	X_refsource_confirm
https://support.f5.com/csp/article/K64119434?utm_source=f5support&amp%3Butm_medium=RSS	X_refsource_confirm

URL	Date	SRC
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=32806	2024-08-07
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34238	2024-08-07
https://sourceware.org/bugzilla/show_bug.cgi?id=11053	2024-08-07
https://sourceware.org/bugzilla/show_bug.cgi?id=18986	2024-08-07

URL	Date	SRC
http://git.savannah.gnu.org/cgit/gnulib.git/commit/?id=5513b40999149090987a0341c018d05d3eea1272	2023-11-07
https://security.netapp.com/advisory/ntap-20190315-0002	2023-11-07

URL	Date	SRC
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=22793	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"				< 2.28 Search vendor "Gnu" for product "Glibc" and version " < 2.28"		-		Affected
Netapp Search vendor "Netapp"		Cloud Backup Search vendor "Netapp" for product "Cloud Backup"				*		-		Affected
Netapp Search vendor "Netapp"		Ontap Select Deploy Administration Utility Search vendor "Netapp" for product "Ontap Select Deploy Administration Utility"				-		-		Affected
Netapp Search vendor "Netapp"		Steelstore Cloud Integrated Storage Search vendor "Netapp" for product "Steelstore Cloud Integrated Storage"				-		-		Affected