Bug 2122360 (CVE-2020-35534)

Summary:	CVE-2020-35534 LibRaw: Memory corruption in "crxFreeSubbandData()" function
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	core-kernel-mgr, dchen, debarshir, epel-packagers-sig, gwync, hobbes1069, jshortt, manisandro, mattdm, mattia.verga, michel, ngompa13, sebastian, siddharth.kde, sipoyare, than, thibault
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. There is memory corruption within the "crxFreeSubbandData()" function (libraw\src\decoders\crx.cpp) when processing cr3 files.	Story Points:	---
Clone Of:		Environment:
Last Closed:		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:	2135637
Bug Blocks:	2122363

Description Pedro Sampaio 2022-08-29 21:05:22 UTC

In LibRaw, there is a memory corruption vulnerability within the "crxFreeSubbandData()" function (libraw\src\decoders\crx.cpp) when processing cr3 files.

Upstream issue:

https://github.com/LibRaw/LibRaw/issues/279

Upstream fix:

https://github.com/LibRaw/LibRaw/commit/e41f331e90b383e3208cefb74e006df44bf3a4b8

Comment 1 Debarshi Ray 2022-09-07 10:55:06 UTC

What's the severity of this CVE?  Low?

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).