Bug 1213975 (CVE-2023-4135)

Summary: VUL-0: CVE-2023-4135: kvm,qemu: NVMe: out-of-bounds read in nvme_fdp_events()
Product: [Novell Products] SUSE Security Incidents Reporter: Carlos López <carlos.lopez>
Component: IncidentsAssignee: Security Team bot <security-team>
Status: RESOLVED FIXED QA Contact: Security Team bot <security-team>
Severity: Normal    
Priority: P3 - Medium CC: cathy.hu, dfaggioli, security-team, stoyan.manolov
Version: unspecified   
Target Milestone: ---   
Hardware: Other   
OS: Other   
URL: https://smash.suse.de/issue/374190/
Whiteboard: CVSSv3.1:SUSE:CVE-2023-4135:6.7:(AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H)
Found By: Security Response Team Services Priority:
Business Priority: Blocker: ---
Marketing QA Status: --- IT Deployment: ---

Description Carlos López 2023-08-04 08:12:02 UTC 
CVE-2023-4135

A heap out of bounds memory read was found in the virtual nvme device in QEMU. An offset provided by guest is not validated by qemu process before computing a host heap pointer, which is used for copying data back to guest. Arbitrary heap memory relative to an allocated buffer can be disclosed.

ZDI security advisory:
https://www.zerodayinitiative.com/advisories/ZDI-CAN-21521

Upstream patch:
https://lists.nongnu.org/archive/html/qemu-devel/2023-08/msg00516.html

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-4135
https://bugzilla.redhat.com/show_bug.cgi?id=2229101
Comment 1 Carlos López 2023-08-04 08:16:40 UTC 
Affects:
- SUSE:ALP:Source:Standard:1.0/qemu
- openSUSE:Factory/qemu

Patch not merged yet.
Comment 5 Dario Faggioli 2023-10-06 09:12:33 UTC 
The fix is in 8.1, so we're done. Handing back