Bug 2118869 (CVE-2022-2869)

Summary:	CVE-2022-2869 libtiff: tiffcrop.c has uint32_t underflow which leads to out of bounds read and write in extractContigSamples8bits()
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 tool that has a uint32_t underflow, which leads to an out-of-bounds read and write in the extractContigSamples8bits routine. This flaw allows an attacker who supplies a crafted file to tiffcrop to trick a user into opening the crafted file with tiffcrop, causing a crash or potential further exploitations.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-01-14 10:00:35 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:	2118871, 2118872, 2118873, 2118874, 2118875, 2118876, 2118877, 2118878, 2118879, 2140590
Bug Blocks:	2118841

Description Todd Cullum 2022-08-16 23:59:57 UTC

In libtiff's tiffcrop (tools/tiffcrop.c) utility, there is a uint32_t underflow that leads to an out-of-bounds read and write. A crafted file could trigger this flaw when certain command line arguments are also supplied.

References:
1. https://gitlab.com/libtiff/libtiff/-/issues/352
2. https://gitlab.com/libtiff/libtiff/-/merge_requests/294/diffs?commit_id=bcf28bb7f630f24fa47701a9907013f3548092cd

Comment 1 Todd Cullum 2022-08-17 00:04:02 UTC

Created iv tracking bugs for this issue:

Affects: fedora-35 [bug 2118872]
Affects: fedora-36 [bug 2118874]


Created libtiff tracking bugs for this issue:

Affects: fedora-35 [bug 2118871]
Affects: fedora-36 [bug 2118875]


Created mingw-libtiff tracking bugs for this issue:

Affects: fedora-35 [bug 2118873]
Affects: fedora-36 [bug 2118876]

Comment 3 errata-xmlrpc 2023-01-12 09:17:21 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 10:00:33 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-2022-2869