CVE-2023-3255

A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an attacker controlled zlib buffer in the `inflate_buffer` function. This could allow a remote authenticated client who is able to send a clipboard to the VNC server to trigger a denial of service.
Infinite Loop
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
redhatCNA
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 33%
VendorProductVersion
qemuqemu
𝑥
≤ 8.0.3
redhatenterprise_linux
8.0
redhatenterprise_linux
9.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
qemu
bullseye
1:5.2+dfsg-11+deb11u3
not-affected
buster
not-affected
bullseye (security)
1:5.2+dfsg-11+deb11u2
fixed
bookworm
1:7.2+dfsg-7+deb12u7
fixed
trixie
1:9.2.0+ds-2
fixed
sid
1:9.2.0+ds-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
qemu
oracular
not-affected
noble
not-affected
mantic
not-affected
lunar
Fixed 1:7.2+dfsg-5ubuntu2.4
released
kinetic
ignored
jammy
Fixed 1:6.2+dfsg-2ubuntu6.16
released
focal
not-affected
bionic
not-affected
xenial
not-affected
trusty
not-affected
Common Weakness Enumeration
References
https://access.redhat.com/errata/RHSA-2024:2135
https://access.redhat.com/errata/RHSA-2024:2962
https://access.redhat.com/security/cve/CVE-2023-3255
https://bugzilla.redhat.com/show_bug.cgi?id=2218486
https://access.redhat.com/errata/RHSA-2024:2135
https://access.redhat.com/errata/RHSA-2024:2962
https://access.redhat.com/security/cve/CVE-2023-3255
https://bugzilla.redhat.com/show_bug.cgi?id=2218486
https://security.netapp.com/advisory/ntap-20231020-0008/