CVE-2020-10703

NameCVE-2020-10703
DescriptionA NULL pointer dereference was found in the libvirt API responsible introduced in upstream version 3.10.0, and fixed in libvirt 6.0.0, for fetching a storage pool based on its target path. In more detail, this flaw affects storage pools created without a target path such as network-based pools like gluster and RBD. Unprivileged users with a read-only connection could abuse this flaw to crash the libvirt daemon, resulting in a potential denial of service.
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

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libvirt (PTS)stretch (security), stretch3.0.0-4+deb9u4fixed
buster5.0.0-4+deb10u1vulnerable
bullseye, sid6.6.0-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libvirtsourcejessie(not affected)
libvirtsourcestretch(not affected)
libvirtsource(unstable)6.0.0-2

Notes

[buster] - libvirt <no-dsa> (Minor issue)
[stretch] - libvirt <not-affected> (Vulnerable code introduced later)
[jessie] - libvirt <not-affected> (Vulnerable code introduced later)
https://bugzilla.redhat.com/show_bug.cgi?id=1790725
Introduced by: https://libvirt.org/git/?p=libvirt.git;a=commit;h=5d5c732d748d644ec14626bce448e84bdc4bd93e (v3.10.0-rc1)
Fixed by: https://libvirt.org/git/?p=libvirt.git;a=commit;h=dfff16a7c261f8d28e3abe60a47165f845fa952f (v6.0.0-rc1)

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