Bug 1932044 (CVE-2020-35524)

Summary: CVE-2020-35524 libtiff: Heap-based buffer overflow in TIFF2PDF tool
Product: [Other] Security Response Reporter: Pedro Sampaio <psampaio>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: erik-fedora, kaycoth, mike, nforro, phracek, rh-spice-bugs, vmugicag
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: libtiff 4.2.0 Doc Type: If docs needed, set a value
Doc Text:
A heap-based buffer overflow flaw was found in libtiff in the handling of TIFF images in libtiff's TIFF2PDF tool. A specially crafted TIFF file can lead to arbitrary code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-11-09 18:23:10 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: 1932045, 1932046, 1934518, 1934519, 1945546, 1945547    
Bug Blocks: 1932047, 1932054    

Description Pedro Sampaio 2021-02-23 19:51:24 UTC
A flaw was found in libtiff 4.1.0. A heap-based buffer overflow exists in the handling of TIFF images in libtiff's TIFF2PDF tool. A specially crafted TIFF file can lead to arbitrary code execution.

References:

https://gitlab.com/rzkn/libtiff/-/commit/7be2e452ddcf6d7abca88f41d3761e6edab72b22
https://gitlab.com/libtiff/libtiff/-/merge_requests/159

Comment 1 Pedro Sampaio 2021-02-23 19:52:01 UTC
Created libtiff tracking bugs for this issue:

Affects: fedora-all [bug 1932046]


Created mingw-libtiff tracking bugs for this issue:

Affects: fedora-all [bug 1932045]

Comment 5 errata-xmlrpc 2021-11-09 17:53:37 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:4241 https://access.redhat.com/errata/RHSA-2021:4241

Comment 6 Product Security DevOps Team 2021-11-09 18:23:08 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-2020-35524