CVE-2017-12837
perl - security update
7.5
HIGH
CVSS 3.1
EPSS 2.4%
Description
Heap-based buffer overflow in the S_regatom function in regcomp.c in Perl 5 before 5.24.3-RC1 and 5.26.x before 5.26.1-RC1 allows remote attackers to cause a denial of service (out-of-bounds write) via a regular expression with a '\N{}' escape and the case-insensitive modifier.
How to fix CVE-2017-12837
To remediate CVE-2017-12837, upgrade the affected package to a fixed version below.
- Alpine/perl—upgrade to 5.26.1-r0 or later
- —upgrade to 5.26.0-8 or later
- —upgrade to 5.20.2-3+deb8u9 or later
Is CVE-2017-12837 being exploited?
Low — EPSS is 2.4%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 5.26.1-r0
- from 0, < 5.26.0-8
- from 0, < 5.20.2-3+deb8u9
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |