Uncontrolled Memory Allocation Affecting libguestfs-winsupport package, versions <0:8.10-1.module+el8.10.0+90308+7c659588


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-ORACLE8-LIBGUESTFSWINSUPPORT-7175133
  • published2 Jun 2024
  • disclosed21 Mar 2024

Introduced: 21 Mar 2024

CVE-2024-2494  (opens in a new tab)
CWE-789  (opens in a new tab)

How to fix?

Upgrade Oracle:8 libguestfs-winsupport to version 0:8.10-1.module+el8.10.0+90308+7c659588 or higher.
This issue was patched in ELSA-2024-3253.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libguestfs-winsupport package and not the libguestfs-winsupport package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

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 Scores

version 3.1