CVE-2021-3582

NameCVE-2021-3582
DescriptionA flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device. The issue occurs while handling a "PVRDMA_CMD_CREATE_MR" command due to improper memory remapping (mremap). This flaw allows a malicious guest to crash the QEMU process on the host. The highest threat from this vulnerability is to system availability.
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)
Debian Bugs990565

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
qemu (PTS)stretch1:2.8+dfsg-6+deb9u9fixed
stretch (security)1:2.8+dfsg-6+deb9u17fixed
buster, buster (security)1:3.1+dfsg-8+deb10u8vulnerable
bullseye1:5.2+dfsg-11+deb11u1fixed
bullseye (security)1:5.2+dfsg-11+deb11u2fixed
bookworm, sid1:7.0+dfsg-7fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qemusourcestretch(not affected)
qemusource(unstable)1:5.2+dfsg-11990565

Notes

[buster] - qemu <no-dsa> (Minor issue)
[stretch] - qemu <not-affected> (Vulnerable code introduced later)
https://lists.nongnu.org/archive/html/qemu-devel/2021-06/msg04148.html

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