qemu: CVE-2023-1386

Related Vulnerabilities: CVE-2023-1386  

Debian Bug report logs - #1055174
qemu: CVE-2023-1386

Reported by: Moritz Mühlenhoff <jmm@inutil.org>

Date: Wed, 1 Nov 2023 19:15:01 UTC

Severity: important

Tags: security, upstream

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Report forwarded to debian-bugs-dist@lists.debian.org, team@security.debian.org, Debian QEMU Team <pkg-qemu-devel@lists.alioth.debian.org>:
Bug#1055174; Package src:qemu. (Wed, 01 Nov 2023 19:15:03 GMT) (full text, mbox, link).


Acknowledgement sent to Moritz Mühlenhoff <jmm@inutil.org>:
New Bug report received and forwarded. Copy sent to team@security.debian.org, Debian QEMU Team <pkg-qemu-devel@lists.alioth.debian.org>. (Wed, 01 Nov 2023 19:15:03 GMT) (full text, mbox, link).


Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Moritz Mühlenhoff <jmm@inutil.org>
To: submit@bugs.debian.org
Subject: qemu: CVE-2023-1386
Date: Wed, 1 Nov 2023 20:13:04 +0100
Source: qemu
X-Debbugs-CC: team@security.debian.org
Severity: important
Tags: security

Hi,

The following vulnerability was published for qemu.

CVE-2023-1386[0]:
| A flaw was found in the 9p passthrough filesystem (9pfs)
| implementation in QEMU. When a local user in the guest writes an
| executable file with SUID or SGID, none of these privileged bits are
| correctly dropped. As a result, in rare circumstances, this flaw
| could be used by malicious users in the guest to elevate their
| privileges within the guest and help a host local user to elevate
| privileges on the host.

https://github.com/v9fs/linux/issues/29

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2023-1386
    https://www.cve.org/CVERecord?id=CVE-2023-1386

Please adjust the affected versions in the BTS as needed.



Added tag(s) upstream. Request was from Salvatore Bonaccorso <carnil@debian.org> to control@bugs.debian.org. (Wed, 01 Nov 2023 19:45:05 GMT) (full text, mbox, link).


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