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CVE-2022-1587

Published: 16 May 2022

An out-of-bounds read vulnerability was discovered in the PCRE2 library in the get_recurse_data_length() function of the pcre2_jit_compile.c file. This issue affects recursions in JIT-compiled regular expressions caused by duplicate data transfers.

Priority

Low

Cvss 3 Severity Score

9.1

Score breakdown

Status

Package Release Status
pcre2
Launchpad, Ubuntu, Debian
bionic
Released (10.31-2ubuntu0.1~esm1)
focal
Released (10.34-7ubuntu0.1)
impish Ignored
(reached end-of-life)
jammy
Released (10.39-3ubuntu0.1)
kinetic Not vulnerable
(10.40-1)
upstream
Released (10.40-1)
xenial Needs triage

Patches:
upstream: https://github.com/PCRE2Project/pcre2/commit/03654e751e7f0700693526b67dfcadda6b42c9d0 (pcre2-10.40)
upstream: https://github.com/PCRE2Project/pcre2/commit/4ca0530b9bdf00d2485d612ddfab8d21c72dc83a (possibly?)
upstream: https://github.com/PCRE2Project/pcre2/commit/d07c967b3ac93a9bd8816837053a75b0f8a816c9 (possibly?)

Severity score breakdown

Parameter Value
Base score 9.1
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H