CVE-2017-12883
9.1
CRITICAL
CVSS 3.1
EPSS 4.7%
Description
Buffer overflow in the S_grok_bslash_N 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 disclose sensitive information or cause a denial of service (application crash) via a crafted regular expression with an invalid '\N{U+...}' escape.
How to fix CVE-2017-12883
To remediate CVE-2017-12883, 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
Is CVE-2017-12883 being exploited?
Low — EPSS is 4.7%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 5.26.1-r0
- from 0, < 5.26.0-8
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |