CVE-2024-2494: falha de média gravidade em libvirt
Libvirt: negative g_new0 length can lead to unbounded memory allocation
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13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 6.2epss 0.4%
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.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Produtos afetados
libvirtRed Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 8 Advanced VirtualizationRed Hat · Red Hat Enterprise Linux 9CVEs relacionadas — libvirt
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Referências
https://access.redhat.com/errata/RHSA-2024:2560https://access.redhat.com/errata/RHSA-2024:3253https://access.redhat.com/security/cve/CVE-2024-2494https://bugzilla.redhat.com/show_bug.cgi?id=2270115https://lists.debian.org/debian-lts-announce/2024/04/msg00000.htmlhttps://lists.libvirt.org/archives/list/devel@lists.libvirt.org/thread/BKRQXPLPC6B7FLHJXSBQYW7HNDEBW6RJ/https://security.netapp.com/advisory/ntap-20240517-0009/