| Name | CVE-2015-8744 |
| Description | QEMU (aka Quick Emulator) built with a VMWARE VMXNET3 paravirtual NIC emulator support is vulnerable to crash issue. It occurs when a guest sends a Layer-2 packet smaller than 22 bytes. A privileged (CAP_SYS_RAWIO) guest user could use this flaw to crash the QEMU process instance resulting in DoS. |
| 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-3471-1 |
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+deb10u12 | fixed |
| bullseye | 1:5.2+dfsg-11+deb11u3 | fixed |
| bullseye (security) | 1:5.2+dfsg-11+deb11u2 | fixed |
| bookworm | 1:7.2+dfsg-7+deb12u5 | fixed |
| trixie | 1:8.2.1+ds-2 | fixed |
| sid | 1:8.2.2+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 | squeeze | (not affected) | | | |
| qemu | source | wheezy | (not affected) | | | |
| qemu | source | jessie | 1:2.1+dfsg-12+deb8u5a | | DSA-3471-1 | |
| qemu | source | (unstable) | 1:2.5+dfsg-1 | | | |
| qemu-kvm | source | (unstable) | (not affected) | | | |
Notes
[wheezy] - qemu <not-affected> (Vulnerable code introduced later)
[squeeze] - qemu <not-affected> (Vulnerable code introduced later)
- qemu-kvm <not-affected> (Vulnerable code not present)
Fixed by: http://git.qemu.org/?p=qemu.git;a=commit;h=a7278b36fcab9af469563bd7b9dadebe2ae25e48 (v2.5.0-rc0)
VMXNET3 device implementation introduced in http://git.qemu.org/?p=qemu.git;a=commit;h=786fd2b0f87baded8c9e55307b99719eea3e016e (v1.5.0-rc0)