CVE-2009-0036
Buffer overflow in the proxyReadClientSocket function in proxy/libvirt_proxy.c in libvirt_proxy 0.5.1 might allow local users to gain…
- 4.4MediumCVSS base score
- 1.2%Exploitation in 30 daysEPSS · top 32% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it.
Show the exploits1
Exploit-DB1 entry
- libvirt_proxy 0.5.1 - Local Privilege Escalation (Exploit-DB entry) (opens in a new tab)
EDB-ID 8534local, linuxpublished 27 Apr 2009Verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By redhat
- 58 days later
· 58 days later
Published
- 15 years later
· 15 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.4 | AV:L/AC:M/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 1.2% · top 32% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.4.
Affected products
n/a
- affected n/a
References
References10
- oval:org.mitre.oval:def:10127 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- [libvir-list] 20090128 Re: [libvirt] [PATCH] proxy: Fix use of uninitalized memory (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [libvir-list] 20090128 Re: [libvirt] [PATCH] proxy: Fix use of uninitalized memory (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 33724 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- [libvir-list] 20090127 [libvirt] [PATCH] proxy: Fix use of uninitalized memory (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=484947 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2009:0382 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://git.et.redhat.com/?p=libvirt.git%3Ba=commitdiff%3Bh=2bb0657e28 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20090210 libvirt_proxy heads up (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 34397 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2009-0047 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2009-0036)Record last updated .