PT-2017-18794 · Oniguruma+5 · Oniguruma+6

Lxxxxfdho · Published 2017-05-24 · Updated 2022-09-01 · CVE-2017-9229

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Oniguruma version 6.2.0 Oniguruma-mod in Ruby versions through 2.4.1 mbstring in PHP versions through 7.1.5

Description An issue was discovered that causes a SIGSEGV in left adjust char head() during regular expression compilation. This occurs due to invalid handling of reg->dmax in forward search range(), which could result in an invalid pointer dereference. The issue normally leads to an immediate denial-of-service condition.

Recommendations For Oniguruma version 6.2.0, update to a version that fixes the issue in left adjust char head() and forward search range(). For Oniguruma-mod in Ruby versions through 2.4.1, update Ruby to a version that includes the fix for the Oniguruma issue. For mbstring in PHP versions through 7.1.5, update PHP to a version that includes the fix for the mbstring issue. As a temporary workaround, consider restricting the use of regular expressions in affected applications until a patch is available.

Exploit

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2017-1820

ALT-PU-2017-1822

ALT-PU-2017-1855

CVE-2017-9229

DLA-958-1

MGASA-2017-0246

RHSA-2018:1296

RHSA-2026:7545

SUSE-SU-2017:3237-1

SUSE-SU-2017:3277-1

SUSE-SU-2018:0003-1

SUSE-SU-2020:1570-1

SUSE-SU-2020_1570-1

USN-3382-1

USN-3382-2

Affected Products

Alt Linux

Oniguruma

Php

Ruby

Suse

Ubuntu

Mbstring

References · 130

• 🔥 https://github.com/kkos/oniguruma/issues/59 · Exploit
• 🔥 https://github.com/rails-lts/json_cve_2020_10663 · Exploit
• https://github.com/kkos/oniguruma/commit/b690371bbf97794b4a1d3f295d4fb9a8b05d402d · Patch
• https://ubuntu.com/security/CVE-2015-8994 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-9224 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-9227 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-11147 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2018:0003-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-9226 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-9229 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-9229 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-9228 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-9229 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:1570-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:3237-1 · Vendor Advisory