CVE-2017-12883
critical
CVSS v3
9.1
CVSS v4 NEW
—
VIR risk
9.1
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.
Predictions
Exploit likelihood
94%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 5.26.1-1 | |
| sles | affected | | |
| debian | bookworm | fixed | 5.26.0-8 |
| debian | bullseye | fixed | 5.26.0-8 |
| debian | forky | fixed | 5.26.0-8 |
| debian | sid | fixed | 5.26.0-8 |
| debian | trixie | fixed | 5.26.0-8 |
References
- http://mirror.cucumberlinux.com/cucumber/cucumber-1.0/source/lang-base/perl/patches/CVE-2017-12883.patch
- http://www.debian.org/security/2017/dsa-3982
- http://www.securityfocus.com/bid/100852
- https://bugzilla.redhat.com/show_bug.cgi?id=1492093
- https://perl5.git.perl.org/perl.git/commitdiff/2be4edede4ae226e2eebd4eff28cedd2041f300f#patch1
- https://perl5.git.perl.org/perl.git/log/refs/tags/v5.24.3-RC1
- https://perl5.git.perl.org/perl.git/log/refs/tags/v5.26.1-RC1
- https://rt.perl.org/Public/Bug/Display.html?id=131598
- https://security.netapp.com/advisory/ntap-20180426-0001/
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://www.suse.com/security/cve/CVE-2017-12883.html
- https://security-tracker.debian.org/tracker/CVE-2017-12883
CWEs
CWE-119
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.