PT-2017-12751 · Perl+3 · Perl+3

Published 2017-09-19 · Updated 2024-06-15 · CVE-2017-12883

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Name of the Vulnerable Software and Affected Versions Perl versions prior to 5.24.3-RC1 Perl versions 5.26.x prior to 5.26.1-RC1

Description The issue 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 in the S grok bslash N function in regcomp.c.

Recommendations For versions prior to 5.24.3-RC1, update to version 5.24.3-RC1 or later. For versions 5.26.x prior to 5.26.1-RC1, update to version 5.26.1-RC1 or later. As a temporary workaround, consider restricting the use of crafted regular expressions with invalid 'N{U+...}' escapes until a patch is available.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2017-2362

CVE-2017-12883

DSA-3982-1

MGASA-2018-0047

MGASA-2018-0049

OPENSUSE-SU-2024:11158-1

RHSA-2026:6206

SUSE-SU-2017:3092-1

USN-3478-1

USN-3478-2

Affected Products

Alt Linux

Perl

Suse

Ubuntu

References · 51

• https://osv.dev/vulnerability/UBUNTU-CVE-2017-12883 · Vendor Advisory
• https://debian.org/security/2017/dsa-3982 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-12883 · Vendor Advisory
• https://perl5.git.perl.org/perl.git/log/refs/tags/v5.24.3-RC1 · Vendor Advisory
• https://perl5.git.perl.org/perl.git/log/refs/tags/v5.26.1-RC1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:11158-1 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2018-0049 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-12837 · Vendor Advisory
• https://perl5.git.perl.org/perl.git/commitdiff/2be4edede4ae226e2eebd4eff28cedd2041f300f#patch1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-12883 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2017-12883 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:3092-1 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-3982-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-12883 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3478-2 · Vendor Advisory