CVE-2022-1586
Published: 16 May 2022
An out-of-bounds read vulnerability was discovered in the PCRE2 library in the compile_xclass_matchingpath() function of the pcre2_jit_compile.c file. This involves a unicode property matching issue in JIT-compiled regular expressions. The issue occurs because the character was not fully read in case-less matching within JIT.
Priority
Status
Package | Release | Status |
---|---|---|
pcre2 Launchpad, Ubuntu, Debian |
bionic |
Needed
|
focal |
Released
(10.34-7ubuntu0.1)
|
|
impish |
Ignored
(reached end-of-life)
|
|
jammy |
Released
(10.39-3ubuntu0.1)
|
|
kinetic |
Not vulnerable
(10.40-1)
|
|
lunar |
Not vulnerable
(10.40-1)
|
|
upstream |
Released
(10.40-1)
|
|
Patches: upstream: https://github.com/PCRE2Project/pcre2/commit/50a51cb7e67268e6ad417eb07c9de9bfea5cc55a (pcre2-10.40) upstream: https://github.com/PCRE2Project/pcre2/commit/d4fa336fbcc388f89095b184ba6d99422cfc676c |
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 |