CVE-2021-3638
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.4%
exploitation probability
0.4%top 65% of all CVEs
observed exploitation
nono source reports it
An out-of-bounds memory access flaw was found in the ATI VGA device emulation of QEMU. This flaw occurs in the ati_2d_blt() routine while handling MMIO write operations when the guest provides invalid values for the destination display parameters. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.
Affected products
n/a · QEMUReferences
https://bugzilla.redhat.com/show_bug.cgi?id=1979858https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GTVPHLLXJ65BUMFBUUZ35F3J632SLFRK/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/https://lists.nongnu.org/archive/html/qemu-devel/2021-09/msg01682.htmlhttps://security.netapp.com/advisory/ntap-20220407-0003/https://ubuntu.com/security/CVE-2021-3638