From: "Santiago Ruano Rincón" <santiagorr@riseup.net>
To: qemu-devel@nongnu.org, Alexander Bulekov <alxndr@bu.edu>,
Chuhong Yuan <hslester96@gmail.com>
Subject: Addressing CVE-2024-3446 in qemu versions shipped in debian bullseye and older
Date: Mon, 30 Dec 2024 18:21:47 -0500 [thread overview]
Message-ID: <Z3MrCyX8tVQMPjz7@voleno> (raw)
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Hello there,
(Please CC me since I am not subscribed to the QEMU devel list.)
I am working on backporting some CVE fixes to old Debian versions
(bullseye and previous), and I would like to ask you some help to
confirm if QEMU in those debian releases is affected by CVE-2024-3446 or
not. This is QEMU 5.2, 3.1 and 2.8.
On the 7.2 branch, the following four commits are required to fix
CVE-2024-3446:
https://gitlab.com/qemu-project/qemu/-/commit/e070e5e6748e3217028fa21aa30bb51f862368c8
https://gitlab.com/qemu-project/qemu/-/commit/6d37a308159766cb90ed745cfeb1880937b638ec
https://gitlab.com/qemu-project/qemu/-/commit/e7c2df3fd748a20a8b7a316d186b3ac77551f159
https://gitlab.com/qemu-project/qemu/-/commit/7aaf5f7778de4d75a169ab193f08857eb28db3a4
AFAICS, the qemu_bh_new calls were replaced with qemu_bh_new_guarded in
7.2.6.
Please note that 6d37a308159766cb90ed745cfeb1880937b638ec (and
ba28e0ff4d95b56dc334aac2730ab3651ffc3132) include this bug as reference:
https://bugs.launchpad.net/qemu/+bug/1888606. Could you please confirm
the CVE relates to the same issue?
I am unable to reproduce the issue. I've tried the reproducer found at
6d37a308 and the one from the ubuntu referenced bug. However comment #5
in the ubuntu bug mentions it was reproducible with QEMU 5.0, so I am
confused.
To summarise: it OK to affirm QEMU 5.x and older is unaffected by
CVE-2024-3446?
Thanks in advance, and happy new year!
-- Santiago
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next reply other threads:[~2024-12-30 23:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-30 23:21 Santiago Ruano Rincón [this message]
2025-01-02 7:43 ` Addressing CVE-2024-3446 in qemu versions shipped in debian bullseye and older Thomas Huth
2025-01-08 18:16 ` Santiago Ruano Rincón
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