Vulnerability in Red Hat Enterprise Linux 6
CVE-2024-2494
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.
EPSS: 0.004 (29.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8 — versions 8100020240409073027.489197e6
- Red Hat Enterprise Linux 8 Advanced Virtualization
- Red Hat Enterprise Linux 9 — versions 0:10.0.0-6.2.el9_4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking)
- secalert@redhat.com
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2024-2494?
- CVE-2024-2494 is a medium-severity vulnerability in Red Hat Enterprise Linux 6, classified under CWE-789. CVSS score: 6.2/10. Published 2024-03-21.
- How severe is CVE-2024-2494?
- Medium severity. CVSS v3 base score is 6.2 out of 10.
- Is CVE-2024-2494 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.