#VU72307 Integer underflow in QEMU - CVE-2022-3165
Published: February 15, 2023
Vulnerability identifier: #VU72307
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-3165
CWE-ID: CWE-191
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
QEMU
QEMU
Software vendor:
QEMU
QEMU
Description
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to integer underflow in the QEMU VNC server while processing ClientCutText messages in the extended format. A remote client can send a specially crafted payload message to the VNC server and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.
External links
- https://gitlab.com/qemu-project/qemu/-/commit/d307040b18
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I36LKZA7Z65J3LJU2P37LVTWDFTXBMPU/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZTY7TVHX62OJWF6IOBCIGLR2N5K4QN3E/
- https://security.netapp.com/advisory/ntap-20221223-0006/