REDHAT-BUG-2270115
First published: Mon Mar 18 2024(Updated: )
A flaw was found in the RPC library APIs of libvirt. The RPC server de-serialization 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. A local unprivileged user could use this flaw to perform a denial of service attack by causing the libvirt daemon to crash.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| libvirt |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2270649
- https://lists.libvirt.org/archives/list/devel@lists.libvirt.org/thread/BKRQXPLPC6B7FLHJXSBQYW7HNDEBW6RJ/
- https://access.redhat.com/security/cve/CVE-2024-2494
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2270115#c3
- https://lists.libvirt.org/archives/list/devel@lists.libvirt.org/thread/
- https://monopolygo.io/
- https://access.redhat.com/errata/RHSA-2024:2560
- https://access.redhat.com/errata/RHSA-2024:3253
- https://bugzilla.redhat.com/show_bug.cgi?id=2270115
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- alias/CVE-2024-2494
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