CVE-2008-1952
The backend for XenSource Xen Para Virtualized Frame Buffer (PVFB) in Xen ioemu does not properly restrict the frame buffer size, which allows attackers to cause a denial of service (crash) by mapping an arbitrary amount of guest memory.
Does this matter?
Lower severity and a low EPSS score (0.38%). Track it; it rarely justifies an emergency change on its own.
Description
The backend for XenSource Xen Para Virtualized Frame Buffer (PVFB) in Xen ioemu does not properly restrict the frame buffer size, which allows attackers to cause a denial of service (crash) by mapping an arbitrary amount of guest memory.
- CVSS 2.0
- 2.1 LOWAV:L/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 0.38% probability · 32th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- xensource/xen para virtualized frame buffer
- Source
- secalert@redhat.com
EPSS 0.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.xensource.com/archives/html/xen-devel/2008-05/msg00421.html
- http://secunia.com/advisories/32088Vendor Advisory
- http://www.openwall.com/lists/oss-security/2008/05/21/9Patch
- http://www.securityfocus.com/bid/30646
- http://www.securitytracker.com/id?1020957
- http://xenbits.xensource.com/xen-unstable.hg?rev/9044705960cb30cec385bdca7305bcf7db096721Patch
- https://exchange.xforce.ibmcloud.com/vulnerabilities/43362
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11189
- https://rhn.redhat.com/errata/RHSA-2008-0892.html
- http://lists.xensource.com/archives/html/xen-devel/2008-05/msg00421.html
- http://secunia.com/advisories/32088Vendor Advisory
- http://www.openwall.com/lists/oss-security/2008/05/21/9Patch
- http://www.securityfocus.com/bid/30646
- http://www.securitytracker.com/id?1020957
- http://xenbits.xensource.com/xen-unstable.hg?rev/9044705960cb30cec385bdca7305bcf7db096721Patch
- https://exchange.xforce.ibmcloud.com/vulnerabilities/43362
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11189
- https://rhn.redhat.com/errata/RHSA-2008-0892.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.