CVE-2009-3616
9.9
CRITICAL · CVSS 3.1 · EPSS 3.9% (pctl 90)
In your normal cycle
Critical by CVSS (9.9), but no sign of active exploitation.
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.
Scoring
| CVSS | 9.9 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| EPSS | 3.88% — more likely to be exploited than 90% of all CVEs |
| Weakness | CWE-416 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2009-10-23 |
| Last modified | 2026-06-16 |
Affected (3)
| Vendor | Product |
|---|---|
| qemu | qemu |
| redhat | enterprise linux server |
| redhat | enterprise linux workstation |
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
- 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
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