CVE-2009-5155 Information

Description

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.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://git.savannah.gnu.org/cgit/gnulib.git/commit/?id=5513b40999149090987a0341c018d05d3eea1272 https://debbugs.gnu.org/cgi/bugreport.cgi?bug=22793 https://debbugs.gnu.org/cgi/bugreport.cgi?bug=32806 https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34238 https://security.netapp.com/advisory/ntap-20190315-0002/ https://sourceware.org/bugzilla/show_bug.cgi?id=11053 https://sourceware.org/bugzilla/show_bug.cgi?id=18986 https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=eb04c21373e2a2885f3d52ff192b0499afe3c672 https://support.f5.com/csp/article/K64119434 https://support.f5.com/csp/article/K64119434?utm_source=f5support&utm_medium=RSS

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5