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 '(|)(\\1\\1)*' in grep, a different issue than CVE-2018-20796. NOTE: the software maintainer disputes that this is a vulnerability because the behavior occurs only with a crafted pattern
References (2)
Core 2
Core References
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://sourceware.org/bugzilla/show_bug.cgi?id=24269
Vendor Advisory x_refsource_confirm
https://support.f5.com/csp/article/K26346590?utm_source=f5support&%3Butm_medium=RSS
Scores
CVSS v3
7.5
EPSS
0.0079
EPSS Percentile
74.1%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-674
Status
published
Products (1)
gnu/glibc
< 2.29
Published
Feb 26, 2019
Tracked Since
Feb 18, 2026