Bug 1221804 (CVE-2023-50967)

Summary:	VUL-0: CVE-2023-50967: jose: denial of service due to uncontrolled CPU consumption
Product:	[openSUSE] openSUSE Distribution	Reporter:	SMASH SMASH <smash_bz>
Component:	Security	Assignee:	Marcus Meissner <meissner>
Status:	NEW ---	QA Contact:	Security Team bot <security-team>
Severity:	Major
Priority:	P3 - Medium	CC:	andrea.mattiazzo
Version:	Leap 15.6
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/398356/
Whiteboard:
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description SMASH SMASH 2024-03-21 10:23:07 UTC

latchset jose through version 11 allows attackers to cause a denial of service (CPU consumption) via a large p2c (aka PBES2 Count) value.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-50967
https://github.com/latchset/jose
https://www.cve.org/CVERecord?id=CVE-2023-50967
https://github.com/P3ngu1nW/CVE_Request/blob/main/latch-jose.md
https://bugzilla.redhat.com/show_bug.cgi?id=2270538

Comment 1 Andrea Mattiazzo 2024-03-21 10:28:15 UTC

Tracking as affected:
- openSUSE:Backports:SLE-15-SP6/jose  11     
- openSUSE:Factory/jose               11     

Probably a ulimit is sufficient to limit resource usage. I don't found any limitation on the value of p2c in the upstream code, only a bottom value check in pbes2.c [0]

[0] https://github.com/latchset/jose/blob/dae5654d11bf633faf2124158b0f9d7c4ad0ba84/lib/openssl/pbes2.c#L230