CVE-2018-20125

NameCVE-2018-20125
Descriptionhw/rdma/vmw/pvrdma_cmd.c in QEMU allows attackers to cause a denial of service (NULL pointer dereference or excessive memory allocation) in create_cq_ring or create_qp_rings.
SourceCVE (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 severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
qemu (PTS)jessie1:2.1+dfsg-12+deb8u6fixed
jessie (security)1:2.1+dfsg-12+deb8u12fixed
stretch (security), stretch1:2.8+dfsg-6+deb9u8fixed
buster1:3.1+dfsg-8~deb10u1vulnerable
buster (security)1:3.1+dfsg-8+deb10u2vulnerable
bullseye, sid1:4.1-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qemusource(unstable)1:4.1-1unimportant
qemusourcejessie(not affected)
qemusourcestretch(not affected)
qemu-kvmsource(unstable)(unfixed)medium

Notes

[stretch] - qemu <not-affected> (Vulnerable code not present)
[jessie] - qemu <not-affected> (Vulnerable code not present)
https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg02823.html
https://git.qemu.org/?p=qemu.git;a=commit;h=2c858ce5da8ae6689c75182b73bc455a291cad41
PVRDMA support not enabled in the binary packages until 1:3.1+dfsg-3, disabled again in 1:3.1+dfsg-4

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