Bug 1218731 (CVE-2023-51781)

Summary:	VUL-0: CVE-2023-51781: kernel: use-after-free in net/appletalk/ddp.c
Product:	[Novell Products] SUSE Security Incidents	Reporter:	SMASH SMASH <smash_bz>
Component:	Incidents	Assignee:	Olaf Hering <ohering>
Status:	RESOLVED WONTFIX	QA Contact:	Security Team bot <security-team>
Severity:	Major
Priority:	P5 - None	CC:	abergmann, mhocko
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/390671/
Whiteboard:	CVSSv3.1:SUSE:CVE-2023-51781:7.8:(AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description SMASH SMASH 2024-01-11 15:34:13 UTC

An issue was discovered in the Linux kernel before 6.6.8. atalk_ioctl in net/appletalk/ddp.c has a use-after-free because of an atalk_recvmsg race condition.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-51781
https://bugzilla.redhat.com/show_bug.cgi?id=2257683

Comment 4 Michal Hocko 2024-06-07 14:38:53 UTC

atalk_ioctl is limited to privileged users so this is not considered a security threat.