CVE-2019-12068

NameCVE-2019-12068
DescriptionIn QEMU 1:4.1-1, 1:2.1+dfsg-12+deb8u6, 1:2.8+dfsg-6+deb9u8, 1:3.1+dfsg-8~deb10u1, 1:3.1+dfsg-8+deb10u2, and 1:2.1+dfsg-12+deb8u12 (fixed), when executing script in lsi_execute_script(), the LSI scsi adapter emulator advances 's->dsp' index to read next opcode. This can lead to an infinite loop if the next opcode is empty. Move the existing loop exit after 10k iterations so that it covers no-op opcodes as well.
SourceCVE (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)
ReferencesDLA-1927-1, DLA-2288-1, DSA-4665-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
qemu (PTS)buster1:3.1+dfsg-8+deb10u8fixed
buster (security)1:3.1+dfsg-8+deb10u9fixed
bullseye (security), bullseye1:5.2+dfsg-11+deb11u2fixed
bookworm, sid1:7.1+dfsg-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qemusourcejessie1:2.1+dfsg-12+deb8u12DLA-1927-1
qemusourcestretch1:2.8+dfsg-6+deb9u10DLA-2288-1
qemusourcebuster1:3.1+dfsg-8+deb10u5DSA-4665-1
qemusource(unstable)1:4.1-2low
qemu-kvmsource(unstable)(unfixed)

Notes

https://lists.gnu.org/archive/html/qemu-devel/2019-08/msg01518.html
https://git.qemu.org/?p=qemu.git;a=commit;h=de594e47659029316bbf9391efb79da0a1a08e08

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