Bug 2118863 (CVE-2022-2868)

Summary:	CVE-2022-2868 libtiff: Invalid crop_width and/or crop_length could cause an out-of-bounds read in reverseSamples16bits()
Product:	[Other] Security Response	Reporter:	Todd Cullum <tcullum>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
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:	An improper input validation flaw was found in libtiff's tiffcrop utility. This issue can lead to an out-of-bounds read and cause a crash if an attacker can supply a crafted file to tiffcrop.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-01-14 09:30:36 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:	2118864, 2118865, 2118866, 2118867, 2118868, 2118880, 2118881, 2118882, 2118883, 2140591
Bug Blocks:	2118841

Description Todd Cullum 2022-08-16 23:47:56 UTC

In libtiff's tiffcrop utility (tools/tiffcrop.c), a crafted file could supply an invalid crop_width and/or crop_length, and since these values were computed prior to the sanity check, invalid values could later cause out-of-bounds reads in reverseSamples16bits().

References:
1. https://gitlab.com/libtiff/libtiff/-/issues/335
2. https://gitlab.com/libtiff/libtiff/-/merge_requests/294/diffs?commit_id=b258ed69a485a9cfb299d9f060eb2a46c54e5903

Comment 1 Todd Cullum 2022-08-16 23:50:58 UTC

Created iv tracking bugs for this issue:

Affects: fedora-35 [bug 2118865]
Affects: fedora-36 [bug 2118866]


Created libtiff tracking bugs for this issue:

Affects: fedora-35 [bug 2118864]
Affects: fedora-36 [bug 2118867]


Created mingw-libtiff tracking bugs for this issue:

Affects: fedora-36 [bug 2118868]

Comment 2 Todd Cullum 2022-08-17 00:05:02 UTC

Created mingw-libtiff tracking bugs for this issue:

Affects: fedora-35 [bug 2118880]

Comment 4 errata-xmlrpc 2023-01-12 09:17:18 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 5 Product Security DevOps Team 2023-01-14 09:30:34 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-2022-2868