CVE-2016-9923

Quick Emulator (Qemu) built with the 'chardev' backend support is vulnerable to a use after free issue. It could occur while hotplug and unplugging the device in the guest. A guest user/process could use this flaw to crash a Qemu process on the host resulting in DoS.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
redhatCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 26%
VendorProductVersion
qemuqemu
𝑥
≤ 2.7.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
qemu
bullseye
1:5.2+dfsg-11+deb11u3
fixed
jessie
ignored
wheezy
no-dsa
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
artful
not-affected
zesty
not-affected
yakkety
ignored
xenial
ignored
trusty
ignored
precise
dne
qemu-kvm
artful
dne
zesty
dne
yakkety
dne
xenial
dne
trusty
dne
precise
ignored
Common Weakness Enumeration
References
http://www.openwall.com/lists/oss-security/2016/12/09/2
http://www.securityfocus.com/bid/94827
https://security.gentoo.org/glsa/201701-49
http://www.openwall.com/lists/oss-security/2016/12/09/2
http://www.securityfocus.com/bid/94827
https://security.gentoo.org/glsa/201701-49