CVE-2009-3616

Severity: critical (CVSS 9.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2009-10-23 · updated 2026-06-16
Weakness: CWE-416

Description

Multiple use-after-free vulnerabilities in vnc.c in the VNC server in QEMU 0.10.6 and earlier might allow guest OS users to execute arbitrary code on the host OS by establishing a connection from a VNC client and then (1) disconnecting during data transfer, (2) sending a message using incorrect integer data types, or (3) using the Fuzzy Screen Mode protocol, related to double free vulnerabilities.

Affected products

QEMU: through 0.10.6
RedHat Enterprise Linux Server: 5.0
RedHat Enterprise Linux Workstation: 5.0

References

http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=198a0039c5
http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=753b405331
http://marc.info/?l=qemu-devel&m=124324043812915
http://rhn.redhat.com/errata/RHEA-2009-1272.html
http://www.openwall.com/lists/oss-security/2009/10/16/5
http://www.openwall.com/lists/oss-security/2009/10/16/8
http://www.securityfocus.com/bid/36716
https://bugzilla.redhat.com/show_bug.cgi?id=501131
https://bugzilla.redhat.com/show_bug.cgi?id=505641
https://bugzilla.redhat.com/show_bug.cgi?id=508567
http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=198a0039c5
http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=753b405331

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