CVE-2018-20796 Information

Description

In the GNU C Library (aka glibc or libc6) through 2.29 check_dst_limits_calc_pos_1 in posix/regexec.c has Uncontrolled Recursion as demonstrated by ‘(\227|)(\\1\\1|t1|\\\2537)+’ in grep.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/107160 https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34141 https://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00108.html https://security.netapp.com/advisory/ntap-20190315-0002/ https://support.f5.com/csp/article/K26346590?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