|Description||A NULL pointer dereference flaw was found in the megasas-gen2 SCSI host bus adapter emulation of QEMU in versions before and including 6.0. This issue occurs in the megasas_command_cancelled() callback function while dropping a SCSI request. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.|
|Source||CVE (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)|
Vulnerable and fixed packages
The table below lists information on source packages.
|qemu (PTS)||buster, buster (security)||1:3.1+dfsg-8+deb10u8||vulnerable|
|bullseye (security), bullseye||1:5.2+dfsg-11+deb11u2||vulnerable|
The information below is based on the following data on fixed versions.
|Package||Type||Release||Fixed Version||Urgency||Origin||Debian Bugs|
[bullseye] - qemu <postponed> (Minor issue)
[buster] - qemu <postponed> (Fix along in future DSA)
[stretch] - qemu <postponed> (Fix along in future DLA)
No upstream patch as of 2022-04-21