VDB
CVE-2018-20796
CVE-2018-20796
PUBLISHED
CVSS 7.5 HIGH
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.
EPSS 5.76% · 92.5th percentile
Risk Scores
CVSS 3.0
7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
5.76%
92.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:Pro:16.04:LTS | glibc | 2.23-0ubuntu11.3+esm8, 2.23-0ubuntu6, 2.23-0ubuntu9 |
| Ubuntu:Pro:20.04:LTS | glibc | 2.31-0ubuntu9.2, 2.31-0ubuntu9.3, 2.31-0ubuntu9.7 |
| Ubuntu:Pro:18.04:LTS | glibc | 2.27-3ubuntu1.6+esm2, 2.26-0ubuntu2, 2.27-0ubuntu2 |
| Ubuntu:Pro:14.04:LTS | eglibc | 2.19-0ubuntu6.1, 2.17-93ubuntu4, 2.18-0ubuntu6 |
Timeline
- Feb 26, 2019 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Dec 28, 2021 EPSS Score
- May 2, 2022 EPSS Score
- May 13, 2022 CVE Updated
- Jul 4, 2022 EPSS Score
- Sep 6, 2022 EPSS Score
- Jan 9, 2023 EPSS Score
- Mar 7, 2023 EPSS Score
- May 15, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2018-20796 third-party-advisory
- https://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00108.html third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2018-20796 third-party-advisory