CVE-2018-20796

Severity
7.5HIGH
EPSS
1.5%
top 18.93%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedFeb 26
Latest updateMay 13

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:HExploitability: 3.9 | Impact: 3.6

Affected Packages1 packages

NVDgnu/glibc2.29

Patches

🔴Vulnerability Details

3
GHSA
GHSA-7x29-5q3f-f4x2: In the GNU C Library (aka glibc or libc6) through 22022-05-13
CVEList
CVE-2018-20796: In the GNU C Library (aka glibc or libc6) through 22019-02-26
OSV
CVE-2018-20796: In the GNU C Library (aka glibc or libc6) through 22019-02-26

📋Vendor Advisories

4
Red Hat
glibc: uncontrolled recursion in function check_dst_limits_calc_pos_1 in posix/regexec.c2019-02-26
Microsoft
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.2019-02-12
Red Hat
glibc: uncontrolled recursion in function check_dst_limits_calc_pos_1 in posix/regexec.c2019-01-20
Debian
CVE-2018-20796: glibc - In the GNU C Library (aka glibc or libc6) through 2.29, check_dst_limits_calc_po...2018

💬Community

3
Bugzilla
CVE-2019-9192 glibc: uncontrolled recursion in function check_dst_limits_calc_pos_1 in posix/regexec.c2019-03-01
Bugzilla
CVE-2018-20796 glibc: uncontrolled recursion in function check_dst_limits_calc_pos_1 in posix/regexec.c2019-02-26
Bugzilla
CVE-2018-20796 glibc: uncontrolled recursion in function check_dst_limits_calc_pos_1 in posix/regexec.c [fedora-all]2019-02-26
CVE-2018-20796 (HIGH CVSS 7.5) | In the GNU C Library (aka glibc or | cvebase.io