CVE-2021-3638

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
redhatCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
VendorProductVersion
qemuqemu
4.0.0 ≤
𝑥
≤ 6.1.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
qemu
bullseye
1:5.2+dfsg-11+deb11u3
fixed
buster
not-affected
stretch
not-affected
bullseye (security)
1:5.2+dfsg-11+deb11u2
fixed
bookworm
1:7.2+dfsg-7+deb12u7
fixed
sid
1:9.1.1+ds-2
fixed
trixie
1:9.1.1+ds-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
qemu
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
ignored
jammy
not-affected
impish
ignored
hirsute
ignored
groovy
ignored
focal
Fixed 1:4.2-3ubuntu6.28
released
bionic
not-affected
xenial
not-affected
trusty
not-affected
Common Weakness Enumeration
References
https://bugzilla.redhat.com/show_bug.cgi?id=1979858
https://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.html
https://security.netapp.com/advisory/ntap-20220407-0003/
https://ubuntu.com/security/CVE-2021-3638
https://bugzilla.redhat.com/show_bug.cgi?id=1979858
https://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.html
https://security.netapp.com/advisory/ntap-20220407-0003/
https://ubuntu.com/security/CVE-2021-3638