Description
Puppet 2.7.x before 2.7.5, 2.6.x before 2.6.11, and 0.25.x allows local users to modify the permissions of arbitrary files via a symlink attack on the SSH authorized_keys file.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 11 | puppet | 2.7.3-3 | — |
| Debian 6.0 | puppet | 2.6.2-5+squeeze1 | DSA-2314-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| RubyGems | puppet | >= 2.7.0, < 2.7.5 | 2.7.5 | GHSA-qh3g-27jf-3j54 |
| RubyGems | puppet | < 2.6.11 | 2.6.11 | GHSA-qh3g-27jf-3j54 |
Advisories 1
- DSA-2314-1 puppet - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- FEDORA-2011-13633 vendor-advisory
- https://puppet.com/security/cve/cve-2011-3870
- FEDORA-2011-13623 vendor-advisory
- DSA-2314 vendor-advisory
- 46458 third-party-advisory
- FEDORA-2011-13636 vendor-advisory
- http://groups.google.com/group/puppet-announce/browse_thread/thread/91e3b46d2328a1cb
- USN-1223-1 vendor-advisory
- USN-1223-2 vendor-advisory