Bug 2077976 (CVE-2022-1586)

Summary:	CVE-2022-1586 pcre2: Out-of-bounds read in compile_xclass_matchingpath in pcre2_jit_compile.c
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	bdettelb, caswilli, dhalasz, dkuc, fjansen, ggastald, hhorak, jburrell, jwong, kaycoth, ljavorsk, manisandro, micjohns, mschorm, psegedy, rfreiman, sbiarozk, sthirugn, tcarlin, tfister, tkasparek, tmeszaro, tsasak, vkrizan, vkumar, vmugicag
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	pcre2 10.40	Doc Type:	If docs needed, set a value
Doc Text:	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.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-08-31 16:55:18 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2080025, 2077987, 2081957, 2081970, 2081971, 2081972, 2081973, 2086873
Bug Blocks:	2077988, 2081998

Description Pedro Sampaio 2022-04-22 18:50:24 UTC

An out-of-bounds read was discovered in PCRE version 10.39, related to a missing Unicode property matching issue in JIT compiled regular expressions. The bug is present in the function "compile_xclass_matchingpath", declared in "pcre2_jit_compile.c".

References:

https://github.com/PCRE2Project/pcre2/commit/50a51cb7e67268e6ad417eb07c9de9bfea5cc55a

Comment 1 Pedro Sampaio 2022-04-22 19:04:27 UTC

Created pcre2 tracking bugs for this issue:

Affects: fedora-all [bug 2077987]

Comment 3 TEJ RATHI 2022-05-05 05:26:28 UTC

Created mingw-pcre2 tracking bugs for this issue:

Affects: fedora-all [bug 2081957]

Comment 7 errata-xmlrpc 2022-06-28 14:59:42 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2022:5251 https://access.redhat.com/errata/RHSA-2022:5251

Comment 8 errata-xmlrpc 2022-08-03 12:44:13 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2022:5809 https://access.redhat.com/errata/RHSA-2022:5809

Comment 9 Product Security DevOps Team 2022-08-31 16:55:15 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2022-1586