CVE-2017-12883
CRITICAL severity · CVSS 9.1 · Memory corruption
9.1CVSS CRITICAL
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)6%
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: http://mirror.cucumberlinux.com/cucumber/cucumber-1.0/source/lang-base/perl/patches/CVE-2017-12883.patch ↗
Additional information
- NVD record
- http://mirror.cucumberlinux.com/cucumber/cucumber-1.0/source/lang-base/perl/patches/CVE-2017-12883.patchPatch
- https://bugzilla.redhat.com/show_bug.cgi?id=1492093Patch
- https://perl5.git.perl.org/perl.git/commitdiff/2be4edede4ae226e2eebd4eff28cedd2041f300f#patch1Patch
- https://perl5.git.perl.org/perl.git/log/refs/tags/v5.24.3-RC1Advisory
- https://perl5.git.perl.org/perl.git/log/refs/tags/v5.26.1-RC1Advisory
- http://www.debian.org/security/2017/dsa-3982
- http://www.securityfocus.com/bid/100852Advisory
- https://rt.perl.org/Public/Bug/Display.html?id=131598