Bug 2118847 (CVE-2022-2867)

Summary:	CVE-2022-2867 libtiff: uint32_t underflow leads to out of bounds read and write in tiffcrop.c
Product:	[Other] Security Response	Reporter:	Todd Cullum <tcullum>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	erik-fedora, mike, mmuzila, neuro-sig, nforro, phracek, rh-spice-bugs, sanjay.ankur
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	libtiff 4.4.0rc1	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in libtiff's tiffcrop utility that has a uint32_t underflow that can lead to an out-of-bounds read and write. This flaw allows an attacker who supplies a crafted file to tiffcrop (likely via tricking a user to run tiffcrop on it with certain parameters)to cause a crash or, in some cases, further exploitation.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-01-14 09:00:37 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:	2118850, 2118851, 2118852, 2118853, 2118854, 2118855, 2118856, 2118857, 2118858, 2140589
Bug Blocks:	2118841

Description Todd Cullum 2022-08-16 23:11:21 UTC

In libtiff's tiffcrop utility, a uint32_t underflow results in an out-of-bounds read and write in extractContigSamples8bits and extractContigSamplesShifted32bits of tiffcrop.c.

References:
https://gitlab.com/libtiff/libtiff/-/issues/350
https://gitlab.com/libtiff/libtiff/-/issues/351
https://gitlab.com/libtiff/libtiff/-/merge_requests/294/diffs?commit_id=7d7bfa4416366ec64068ac389414241ed4730a54

Comment 1 Todd Cullum 2022-08-16 23:26:20 UTC

Created iv tracking bugs for this issue:

Affects: fedora-35 [bug 2118851]
Affects: fedora-36 [bug 2118853]


Created libtiff tracking bugs for this issue:

Affects: fedora-35 [bug 2118850]
Affects: fedora-36 [bug 2118854]


Created mingw-libtiff tracking bugs for this issue:

Affects: fedora-35 [bug 2118852]
Affects: fedora-36 [bug 2118855]

Comment 3 errata-xmlrpc 2023-01-12 09:17:17 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:0095 https://access.redhat.com/errata/RHSA-2023:0095

Comment 4 Product Security DevOps Team 2023-01-14 09:00:35 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-2022-2867