CVE-2009-3616

moderate-risk

Published 2009-10-23

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.

Do I need to act?

0.75% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 9.9/10 Critical

NETWORK / LOW complexity

Affected Products (3)

Qemu

Enterprise Linux Server

Enterprise Linux Workstation

Affected Vendors

Qemu Redhat

References (20)

Broken Link http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=198a0039c5

Broken Link http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=753b405331

Mailing List http://marc.info/?l=qemu-devel&m=124324043812915

Third Party Advisory http://rhn.redhat.com/errata/RHEA-2009-1272.html

Mailing List http://www.openwall.com/lists/oss-security/2009/10/16/5

Mailing List http://www.openwall.com/lists/oss-security/2009/10/16/8

Broken Link http://www.securityfocus.com/bid/36716

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=501131

Exploit https://bugzilla.redhat.com/show_bug.cgi?id=505641

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=508567