Bug 933163

Summary:	[Tracker] Drop (possibly-)unnecessary use of unsafe media-libs/giflib where exposed to untrusted input
Product:	Gentoo Linux	Reporter:	Sam James <sam>
Component:	Current packages	Assignee:	No maintainer - Look at https://wiki.gentoo.org/wiki/Project:Proxy_Maintainers if you want to take care of it <maintainer-needed>
Status:	CONFIRMED ---
Severity:	normal	Keywords:	Tracker
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
See Also:	https://bugs.gentoo.org/show_bug.cgi?id=785664 https://bugs.gentoo.org/show_bug.cgi?id=851945 https://bugs.gentoo.org/show_bug.cgi?id=918539
Whiteboard:
Package list:		Runtime testing required:	---
Bug Depends on:	933161, 933162, 933164, 933165, 933166, 933167, 933160
Bug Blocks:

Description Sam James archtester

2024-05-30 04:12:19 UTC

giflib appears to have a terrible security profile:
* bug 785664 	
* bug 851945
* bug 918539

In the latest upstream release, they indicated that they aren't interested in any sort of bug reports on invalid input.

Please consider, if appropriate, either dropping USE=gif support, package.use.masking it, or perhaps disabling it by default via package.use (given the desktop profiles enable USE=gif by default).

If this package is expected to only interact with trusted gifs or you feel it's critical to the functionality of this package, feel free to close as WONTFIX. Thanks.

If you're not sure, consider raising this with upstream of this package to see what they suggest.

Comment 1 Sam James archtester

2024-05-30 05:24:22 UTC

NRK raises a fair point at https://bugs.gentoo.org/933166#c2 -- the reported vulnerabilities are in giflib's utilities. As I write there, I'm suspicious about how robust giflib is, but maybe I panicked a bit.

I still think we should reduce unnecessary use though.