| Name | CVE-2020-1711 |
| Description | An out-of-bounds heap buffer access flaw was found in the way the iSCSI Block driver in QEMU versions 2.12.0 before 4.2.1 handled a response coming from an iSCSI server while checking the status of a Logical Address Block (LBA) in an iscsi_co_block_status() routine. A remote user could use this flaw to crash the QEMU process, resulting in a denial of service or potential execution of arbitrary code with privileges of the QEMU process on the host. |
| 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-2144-1, DLA-2373-1 |
| Debian Bugs | 949731 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| qemu (PTS) | jessie, jessie (lts) | 1:2.1+dfsg-12+deb8u23 | fixed |
| stretch (security) | 1:2.8+dfsg-6+deb9u17 | fixed |
| stretch (lts), stretch | 1:2.8+dfsg-6+deb9u19 | fixed |
| buster (security), buster, buster (lts) | 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+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 | wheezy | (unfixed) | end-of-life | | |
| qemu | source | jessie | 1:2.1+dfsg-12+deb8u14 | | DLA-2144-1 | |
| qemu | source | stretch | 1:2.8+dfsg-6+deb9u11 | | DLA-2373-1 | |
| qemu | source | buster | 1:3.1+dfsg-8+deb10u4 | | | |
| qemu | source | (unstable) | 1:4.2-2 | | | 949731 |
| qemu-kvm | source | wheezy | (unfixed) | end-of-life | | |
| qemu-kvm | source | (unstable) | (unfixed) | | | |
Notes
Upstream patch: https://git.qemu.org/?p=qemu.git;a=commitdiff;h=693fd2acdf14dd86c0bf852610f1c2cca80a74dc (5.0)
https://www.openwall.com/lists/oss-security/2020/01/23/3