| Name | CVE-2020-35504 |
| Description | A NULL pointer dereference flaw was found in the SCSI emulation support of QEMU in versions before 6.0.0. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3099-1 |
| Debian Bugs | 979679 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| qemu (PTS) | bullseye | 1:5.2+dfsg-11+deb11u3 | vulnerable |
| bullseye (security) | 1:5.2+dfsg-11+deb11u2 | vulnerable | |
| bookworm | 1:7.2+dfsg-7+deb12u7 | fixed | |
| sid, trixie | 1:9.2.0+ds-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| qemu | source | experimental | 1:6.0+dfsg-1~exp0 | |||
| qemu | source | buster | 1:3.1+dfsg-8+deb10u9 | DLA-3099-1 | ||
| qemu | source | (unstable) | 1:6.0+dfsg-3 | 979679 |
[bullseye] - qemu <ignored> (Minor issue)
[stretch] - qemu <postponed> (Fix along in future DLA)
https://bugzilla.redhat.com/show_bug.cgi?id=1909766
https://bugs.launchpad.net/qemu/+bug/1910723 (reproducer)
https://lists.gnu.org/archive/html/qemu-devel/2020-12/msg06065.html
https://git.qemu.org/?p=qemu.git;a=commit;h=0db895361b8a82e1114372ff9f48
https://git.qemu.org/?p=qemu.git;a=commit;h=e392255766071c8cac480da3a9ae
https://git.qemu.org/?p=qemu.git;a=commit;h=e5455b8c1c6170c788f3c0fd577c
https://git.qemu.org/?p=qemu.git;a=commit;h=c5fef9112b15c4b5494791cdf8bb
https://git.qemu.org/?p=qemu.git;a=commit;h=7b320a8e67a534925048cbabfa51
https://git.qemu.org/?p=qemu.git;a=commit;h=99545751734035b76bd372c4e721
https://git.qemu.org/?p=qemu.git;a=commit;h=fa7505c154d4d00ad89a747be2ed
https://git.qemu.org/?p=qemu.git;a=commit;h=fbc6510e3379fa8f8370bf71198f
https://git.qemu.org/?p=qemu.git;a=commit;h=0ebb5fd80589835153a0c2baa1b8
https://git.qemu.org/?p=qemu.git;a=commit;h=324c8809897c8c53ad05c3a7147d
https://git.qemu.org/?p=qemu.git;a=commit;h=607206948cacda4a80be5b976dba