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Fencer Intel
medium 6.5

CVE-2012-3447 json

Arbitrary file overwrite in OpenStack Nova

published 2012-08-20 14 y ago modified 2026-06-16 4 mo ago also GHSA-xc4g-7vw8-924h , PYSEC-2012-21 , EUVD-2012-0018

cvss
6.5
version 3.1, GitHub
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 80%
public exploits
0
none known

Summary

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.

Patch / fix

  • pypi nova 12.0.0
  • nova Debian 14, Debian 13, Debian 12 2012.1.1-6

debian advisories DEBIAN-CVE-2012-3447

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-3447 updated cvss 3.5

OpenStack-Nova: compute nodes disk image file corruption, incomplete fix for CVE-2012-3361 (OSSA 2012-011)

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.93% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/openstack/nova/commit/ce4b2e27be45a85b310237615c47eb53f37bb5f3 referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/openstack/nova/commit/d9577ce9f266166a297488445b5b0c93c1ddb368 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.9 AV:N/AC:M/Au:S/C:N/I:P/A:P
GitHub 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
pypi nova
<12.0.0
all versions
12.0.0

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls
  • CWE-863 Incorrect Authorization

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.