| Name | CVE-2014-7840 |
| Description | The host_from_stream_offset function in arch_init.c in QEMU, when loading RAM during migration, allows remote attackers to execute arbitrary code via a crafted (1) offset or (2) length value in savevm data. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
| NVD severity | high |
| Debian Bugs | 769451 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| qemu (PTS) | stretch | 1:2.8+dfsg-6+deb9u9 | fixed |
| stretch (security) | 1:2.8+dfsg-6+deb9u16 | fixed |
| buster, buster (security) | 1:3.1+dfsg-8+deb10u8 | fixed |
| bullseye (security), bullseye | 1:5.2+dfsg-11+deb11u1 | fixed |
| bookworm | 1:6.2+dfsg-1 | fixed |
| sid | 1:6.2+dfsg-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 | (unstable) | 2.1+dfsg-8 | low | | 769451 |
| qemu-kvm | source | (unstable) | (unfixed) | low | | |
Notes
[wheezy] - qemu <no-dsa> (Minor issue, hardly exploitable in practice)
[squeeze] - qemu <no-dsa> (Minor issue, hardly exploitable in practice)
[wheezy] - qemu-kvm <no-dsa> (Minor issue, hardly exploitable in practice)
[squeeze] - qemu-kvm <no-dsa> (Minor issue, hardly exploitable in practice)
http://thread.gmane.org/gmane.comp.emulators.qemu/306117