Bug 1213975 (CVE-2023-4135) - VUL-0: CVE-2023-4135: kvm,qemu: NVMe: out-of-bounds read in nvme_fdp_events()
Summary: VUL-0: CVE-2023-4135: kvm,qemu: NVMe: out-of-bounds read in nvme_fdp_events()
Status: RESOLVED FIXED
Alias: CVE-2023-4135
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Normal
Target Milestone: ---
Assignee: Security Team bot
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/374190/
Whiteboard: CVSSv3.1:SUSE:CVE-2023-4135:6.7:(AV:L...
Keywords:
Depends on:
Blocks:
 
Reported: 2023-08-04 08:12 UTC by Carlos López
Modified: 2023-10-25 09:10 UTC (History)
4 users (show)

See Also:
Found By: Security Response Team
Services Priority:
Business Priority:
Blocker: ---
Marketing QA Status: ---
IT Deployment: ---

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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