Bug 2122356 (CVE-2020-35531)

Summary:	CVE-2020-35531 LibRaw: Out-of-bounds read in get_huffman_diff() function
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	alekcejk, core-kernel-mgr, dchen, debarshir, epel-packagers-sig, fenlason, gwync, hobbes1069, jshortt, kde-sig, manisandro, mattdm, mattia.verga, michel, ngompa13, nphilipp, rdieter, sebastian, sergio, siddharth.kde, sipoyare, smparrish, tdawson, than, thibault, viktor.vix.jancik
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	LibRaw 0.21-Beta1, LibRaw 0.20.2, LibRaw 0.20.1, LibRaw 0.20.0, LibRaw 0.20-RC2	Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in LibRaw. An out-of-bounds read vulnerability exists within the get_huffman_diff() function (libraw\src\x3f\x3f_utils_patched.cpp) when reading data from an image file.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-11-29 22:58:36 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:
Bug Blocks:	2122363

Description Pedro Sampaio 2022-08-29 20:48:43 UTC

In LibRaw, an out-of-bounds read vulnerability exists within the get_huffman_diff() function (libraw\src\x3f\x3f_utils_patched.cpp) when reading data from an image file.

Upstream issue:

https://github.com/LibRaw/LibRaw/issues/270

Upstream fix:

https://github.com/LibRaw/LibRaw/commit/d75af00681a74dcc8b929207eb895611a6eceb68

Comment 1 Debarshi Ray 2022-09-07 10:48:13 UTC

What's the severity of this CVE?  Moderate?

For what it's worth, this CVE neither affects the LibRaw package in Fedora (F >= 35 has 0.20.2) nor in RHEL 9 (has 0.20.2).

I didn't check packages that carry other copies of the same code (eg., dcraw).

Comment 2 Product Security DevOps Team 2022-11-29 22:58:34 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-2020-35531