CVE-2009-0036
Buffer overflow in the proxyReadClientSocket function in proxy/libvirt_proxy.c in libvirt_proxy 0...
Buffer overflow in the proxyReadClientSocket function in proxy/libvirt_proxy.c in libvirt_proxy 0.5.1 might allow local users to gain privileges by sending a portion of the header of a virProxyPacket packet, and then sending the remainder of the packet with crafted values in the header, related to use of uninitialized memory in a validation check.
Exploit likelihood
What each source reports
NVD Score used
Buffer overflow in the proxyReadClientSocket function in proxy/libvirt_proxy.c in libvirt_proxy 0.5.1 might allow local users to gain privileges by sending a portion of the header of a virProxyPacket packet, and then sending the remainder of the packet with crafted values in the header, related to use of uninitialized memory in a validation check.
- Record
CVE-2009-0036- CVSS 2.0
- 4.4 Medium
AV:L/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
Buffer overflow in the proxyReadClientSocket function in proxy/libvirt_proxy.c in libvirt_proxy 0.5.1 might allow local users to gain privileges by sending a portion of the header of a virProxyPacket packet, and then sending the remainder of the packet with crafted values in the header, related to use of uninitialized memory in a validation check.
- Record
CVE-2009-0036- Updated
- 2026-11-02
EUVDEUVD-2009-0047 No score
Buffer overflow in the proxyReadClientSocket function in proxy/libvirt_proxy.c in libvirt_proxy 0.5.1 might allow local users to gain privileges by sending a portion of the header of a virProxyPacket packet, and then sending the remainder of the packet with crafted values in the header, related to use of uninitialized memory in a validation check.
- Record
EUVD-2009-0047- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wm6m-gxgr-pvq6 No score
Buffer overflow in the proxyReadClientSocket function in proxy/libvirt_proxy.c in libvirt_proxy 0...
Buffer overflow in the proxyReadClientSocket function in proxy/libvirt_proxy.c in libvirt_proxy 0.5.1 might allow local users to gain privileges by sending a portion of the header of a virProxyPacket packet, and then sending the remainder of the packet with crafted values in the header, related to use of uninitialized memory in a validation check.
- Record
GHSA-wm6m-gxgr-pvq6- Weakness
- CWE-119
- Updated
- 2026-11-02
OSV No score
Buffer overflow in the proxyReadClientSocket function in proxy/libvirt_proxy.c in libvirt_proxy 0.5.1 might allow local users to gain privileges by sending a portion of the header of a virProxyPacket packet, and then sending the remainder of the packet with crafted values in the header, related to use of uninitialized memory in a validation check.
- Record
CVE-2009-0036- Updated
- 2026-11-02
OSVDEBIAN-CVE-2009-0036 No score
Buffer overflow in the proxyReadClientSocket function in proxy/libvirt_proxy.c in libvirt_proxy 0.5.1 might allow local users to gain privileges by sending a portion of the header of a virProxyPacket packet, and then sending the remainder of the packet with crafted values in the header, related to use of uninitialized memory in a validation check.
- Record
DEBIAN-CVE-2009-0036- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
libvirtDebian:12 |
before 0.5.1-7 | 0.5.1-7 |
libvirtDebian:13 |
before 0.5.1-7 | 0.5.1-7 |
libvirtDebian:14 |
before 0.5.1-7 | 0.5.1-7 |
libvirtRed Hat:rhel_virtualization:5::client From an advisory covering 2 CVEs |
before 0:0.3.3-14.el5_3.1 | 0:0.3.3-14.el5_3.1 |
libvirt-debuginfoRed Hat:rhel_virtualization:5::client From an advisory covering 2 CVEs |
before 0:0.3.3-14.el5_3.1 | 0:0.3.3-14.el5_3.1 |
libvirt-develRed Hat:rhel_virtualization:5::client From an advisory covering 2 CVEs |
before 0:0.3.3-14.el5_3.1 | 0:0.3.3-14.el5_3.1 |
libvirt-pythonRed Hat:rhel_virtualization:5::client From an advisory covering 2 CVEs |
before 0:0.3.3-14.el5_3.1 | 0:0.3.3-14.el5_3.1 |
libvirtRed Hat:rhel_virtualization:5::server From an advisory covering 2 CVEs |
before 0:0.3.3-14.el5_3.1 | 0:0.3.3-14.el5_3.1 |
libvirt-debuginfoRed Hat:rhel_virtualization:5::server From an advisory covering 2 CVEs |
before 0:0.3.3-14.el5_3.1 | 0:0.3.3-14.el5_3.1 |
libvirt-develRed Hat:rhel_virtualization:5::server From an advisory covering 2 CVEs |
before 0:0.3.3-14.el5_3.1 | 0:0.3.3-14.el5_3.1 |
libvirt-pythonRed Hat:rhel_virtualization:5::server From an advisory covering 2 CVEs |
before 0:0.3.3-14.el5_3.1 | 0:0.3.3-14.el5_3.1 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | libvirt_proxy 0.5.1 - Local Privilege Escalation | 2009-04-27 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2009-0036 is a medium vulnerability (CVSS 4.4) in Libvirt, published February 11, 2009. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 1.17%, the 67th percentile. Fixed in libvirt 0.5.1-7.
References
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10127
redhat.com/archives/libvir-list/2009-January/msg00728.html
securityfocus.com/bid/33724
bugzilla.redhat.com/show_bug.cgi?id=484947
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git.et.redhat.com?p=libvirt.git%3Ba=commitdiff%3Bh=2bb0657e28
openwall.com/lists/oss-security/2009/02/10/8
secunia.com/advisories/34397
nvd.nist.gov/vuln/detail/CVE-2009-0036
github.com/advisories/GHSA-wm6m-gxgr-pvq6
security-tracker.debian.org/tracker/CVE-2009-0036
access.redhat.com/errata/RHSA-2009:0382
security.access.redhat.com/data/csaf/v2/advisories/2009/rhsa-2009_0382.json
cve.org/CVERecord?id=CVE-2008-5086