CVE-2024-2494

Publication date 20 March 2024

Last updated 24 July 2024

Ubuntu priority

A flaw was found in the RPC library APIs of libvirt. The RPC server deserialization code allocates memory for arrays before the non-negative length check is performed by the C API entry points. Passing a negative length to the g_new0 function results in a crash due to the negative length being treated as a huge positive number. This flaw allows a local, unprivileged user to perform a denial of service attack by causing the libvirt daemon to crash.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libvirt	24.10 oracular	Fixed 10.0.0-2ubuntu8.1
	24.04 LTS noble	Fixed 10.0.0-2ubuntu8.1
	23.10 mantic	Fixed 9.6.0-1ubuntu1.1
	22.04 LTS jammy	Fixed 8.0.0-1ubuntu7.10
	20.04 LTS focal	Fixed 6.0.0-0ubuntu8.19
	18.04 LTS bionic	Needs evaluation
	16.04 LTS xenial	Needs evaluation
	14.04 LTS trusty	Ignored end of ESM support, was needs-triage

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
libvirt	Upstream: 8a3f8d9

References

Related Ubuntu Security Notices (USN)

USN-6734-1
libvirt vulnerabilities
15 April 2024

USN-6734-2
libvirt vulnerabilities
29 April 2024

Other references

https://www.cve.org/CVERecord?id=CVE-2024-2494