| Name | CVE-2015-6855 |
| Description | hw/ide/core.c in QEMU does not properly restrict the commands accepted by an ATAPI device, which allows guest users to cause a denial of service or possibly have unspecified other impact via certain IDE commands, as demonstrated by a WIN_READ_NATIVE_MAX command to an empty drive, which triggers a divide-by-zero error and instance crash. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-3361-1, DSA-3362-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| qemu (PTS) | bullseye | 1:5.2+dfsg-11+deb11u3 | fixed |
| bullseye (security) | 1:5.2+dfsg-11+deb11u2 | fixed | |
| bookworm | 1:7.2+dfsg-7+deb12u7 | fixed | |
| sid, trixie | 1:9.1.1+ds-5 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| qemu | source | squeeze | (unfixed) | end-of-life | ||
| qemu | source | wheezy | 1.1.2+dfsg-6a+deb7u11 | DSA-3361-1 | ||
| qemu | source | jessie | 1:2.1+dfsg-12+deb8u4 | DSA-3361-1 | ||
| qemu | source | (unstable) | 1:2.4+dfsg-2 | |||
| qemu-kvm | source | squeeze | (unfixed) | end-of-life | ||
| qemu-kvm | source | wheezy | 1.1.2+dfsg-6+deb7u11 | DSA-3362-1 | ||
| qemu-kvm | source | (unstable) | (unfixed) |
[squeeze] - qemu <end-of-life> (Not supported in Squeeze LTS)
[squeeze] - qemu-kvm <end-of-life> (Not supported in Squeeze LTS)
https://www.openwall.com/lists/oss-security/2015/09/10/1
Fix commit: http://git.qemu.org/?p=qemu.git;a=commit;h=d9033e1d3aa666c5071580617a57bd853c5d794a
exec_cmd introduced in http://git.qemu.org/?p=qemu.git;a=commit;h=7cff87ff6ab117799e32e42c2e4dc4c0588e583a
cmd_table introduced in http://git.qemu.org/?p=qemu.git;a=commit;h=844505b12e722d9ba7060480e766351fc6313501