CVE-2022-1586

Publication date 16 May 2022

Last updated 18 August 2025

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

9.1 · Critical

Score breakdown

Description

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.

Status

Package Ubuntu Release Status
pcre2 25.10 questing
Not affected
25.04 plucky
Not affected
24.10 oracular
Not affected
24.04 LTS noble
Not affected
23.10 mantic
Not affected
23.04 lunar
Not affected
22.10 kinetic
Not affected
22.04 LTS jammy
Fixed 10.39-3ubuntu0.1
21.10 impish Ignored end of life
20.04 LTS focal
Fixed 10.34-7ubuntu0.1
18.04 LTS bionic
Fixed 10.31-2ubuntu0.1~esm1
16.04 LTS xenial
Needs evaluation

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
pcre2

Severity score breakdown

Parameter Value
Base score 9.1 · Critical
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

References

Related Ubuntu Security Notices (USN)

    • USN-5627-1
    • PCRE vulnerabilities
    • 22 September 2022
    • USN-5627-2
    • PCRE vulnerabilities
    • 22 September 2022

Other references