| Name | CVE-2015-5166 |
| Description | Use-after-free vulnerability in QEMU in Xen 4.5.x and earlier does not completely unplug emulated block devices, which allows local HVM guest users to gain privileges by unplugging a block device twice. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 794611 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| qemu (PTS) | buster | 1:3.1+dfsg-8+deb10u8 | fixed |
| buster (security) | 1:3.1+dfsg-8+deb10u10 | fixed |
| bullseye (security), bullseye | 1:5.2+dfsg-11+deb11u2 | fixed |
| bookworm, sid | 1:7.2+dfsg-5 | fixed |
| xen (PTS) | buster, buster (security) | 4.11.4+107-gef32c7afa2-1 | fixed |
| bullseye | 4.14.5+86-g1c354767d5-1 | fixed |
| bullseye (security) | 4.14.5+94-ge49571868d-1 | fixed |
| bookworm, sid | 4.17.0+46-gaaf74a532c-1 | 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 | (not affected) | | | |
| qemu | source | wheezy | (not affected) | | | |
| qemu | source | jessie | (not affected) | | | |
| qemu | source | (unstable) | 1:2.4+dfsg-1a | | | 794611 |
| qemu-kvm | source | (unstable) | (not affected) | | | |
| xen | source | squeeze | (not affected) | | | |
| xen | source | wheezy | (not affected) | | | |
| xen | source | (unstable) | 4.4.0-1 | | | |
Notes
[jessie] - qemu <not-affected> (Vulnerable code not present)
[wheezy] - qemu <not-affected> (Vulnerable code not present)
[squeeze] - qemu <not-affected> (Vulnerable code not present)
- qemu-kvm <not-affected> (Vulnerable code not present)
[wheezy] - xen <not-affected> (Vulnerable code not present)
[squeeze] - xen <not-affected> (Vulnerable code not present)
Xen switched to qemu-system in 4.4.0-1
pci_piix3_xen_ide_unplug introduced in http://git.qemu.org/?p=qemu.git;a=commitdiff;h=679f4f8b178e7c66fbc2f39c905374ee8663d5d8 (v1.0-rc0)
BlockDriverState converted to BlockBackend in http://git.qemu.org/?p=qemu.git;a=commitdiff;h=4be746345f13e99e468c60acbd3a355e8183e3ce (v2.2.0-rc0)
Fixed by: http://git.qemu.org/?p=qemu.git;a=commitdiff;h=6cd387833d05e8ad31829d97e474dc420625aed9 (v2.4.0-rc4)
http://xenbits.xen.org/xsa/advisory-139.html