What’s Vulnerable › Vulnerabilities

CVE-2015-5745

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-01-23 · updated 2026-06-17
• Weakness: CWE-120

Description

Buffer overflow in the send_control_msg function in hw/char/virtio-serial-bus.c in QEMU before 2.4.0 allows guest users to cause a denial of service (QEMU process crash) via a crafted virtio control message.

Affected products

• Arista Networks EOS: 4.12, 4.13, 4.14, 4.15
• Fedoraproject Fedora: 21, 22, 23
• QEMU: before 2.4.0 — fixed in 2.4.0

How to fix

Upgrade to a fixed version: QEMU 2.4.0. Check the vendor advisory for mitigations.

References

• http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168077.html
• http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168646.html
• http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168671.html
• http://www.openwall.com/lists/oss-security/2015/08/06/3
• http://www.openwall.com/lists/oss-security/2015/08/06/5
• https://github.com/qemu/qemu/commit/7882080388be5088e72c425b02223c02e6cb4295
• https://lists.gnu.org/archive/html/qemu-devel/2015-07/msg05458.html
• https://www.arista.com/en/support/advisories-notices/security-advisories/1180-security-advisory-13
• http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168077.html
• http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168646.html
• http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168671.html
• http://www.openwall.com/lists/oss-security/2015/08/06/3

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