What’s Vulnerable › Vulnerabilities

CVE-2013-4535

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-02-11 · updated 2026-06-16
• Weakness: CWE-20

Description

The virtqueue_map_sg function in hw/virtio/virtio.c in QEMU before 1.7.2 allows remote attackers to execute arbitrary files via a crafted savevm image, related to virtio-block or virtio-serial read.

Affected products

• QEMU: before 1.7.2 — fixed in 1.7.2
• RedHat Enterprise Linux Desktop: 6.0
• RedHat Enterprise Linux Server: 6.0
• RedHat Enterprise Linux Server Tus: 6.5
• RedHat Enterprise Linux Workstation: 6.0
• RedHat Virtualization: 3.0

How to fix

Upgrade to a fixed version: QEMU 1.7.2. Check the vendor advisory for mitigations.

References

• http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=36cf2a37132c7f01fa9adb5f95f5312b27742fd4
• http://lists.fedoraproject.org/pipermail/package-announce/2014-May/133345.html
• http://lists.nongnu.org/archive/html/qemu-stable/2014-07/msg00187.html
• http://rhn.redhat.com/errata/RHSA-2014-0743.html
• http://rhn.redhat.com/errata/RHSA-2014-0744.html
• https://bugzilla.redhat.com/show_bug.cgi?id=1066401
• http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=36cf2a37132c7f01fa9adb5f95f5312b27742fd4
• http://lists.fedoraproject.org/pipermail/package-announce/2014-May/133345.html
• http://lists.nongnu.org/archive/html/qemu-stable/2014-07/msg00187.html
• http://rhn.redhat.com/errata/RHSA-2014-0743.html
• http://rhn.redhat.com/errata/RHSA-2014-0744.html
• https://bugzilla.redhat.com/show_bug.cgi?id=1066401

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