CVE-2020-1711

NameCVE-2020-1711
DescriptionAn 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2144-1, DLA-2373-1
Debian Bugs949731

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
qemu (PTS)jessie, jessie (lts)1:2.1+dfsg-12+deb8u23fixed
stretch (security)1:2.8+dfsg-6+deb9u17fixed
stretch (lts), stretch1:2.8+dfsg-6+deb9u19fixed
buster1:3.1+dfsg-8+deb10u8fixed
buster (security)1:3.1+dfsg-8+deb10u12fixed
bullseye1:5.2+dfsg-11+deb11u3fixed
bullseye (security)1:5.2+dfsg-11+deb11u2fixed
bookworm1:7.2+dfsg-7+deb12u5fixed
trixie1:8.2.1+ds-2fixed
sid1:8.2.2+ds-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qemusourcewheezy(unfixed)end-of-life
qemusourcejessie1:2.1+dfsg-12+deb8u14DLA-2144-1
qemusourcestretch1:2.8+dfsg-6+deb9u11DLA-2373-1
qemusourcebuster1:3.1+dfsg-8+deb10u4
qemusource(unstable)1:4.2-2949731
qemu-kvmsourcewheezy(unfixed)end-of-life
qemu-kvmsource(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

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