| Name | CVE-2009-4411 |
| Description | The (1) setfacl and (2) getfacl commands in XFS acl 2.2.47, when running in recursive (-R) mode, follow symbolic links even when the --physical (aka -P) or -L option is specified, which might allow local users to modify the ACL for arbitrary files or directories via a symlink attack. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 499076 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| acl (PTS) | buster | 2.2.53-4 | fixed |
| bullseye | 2.2.53-10 | fixed |
| bookworm | 2.3.1-3 | fixed |
| sid, trixie | 2.3.2-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| acl | source | etch | (not affected) | | | |
| acl | source | (unstable) | 2.2.49-2 | low | | 499076 |
Notes
[etch] - acl <not-affected> (Vulnerable code not present)
[lenny] - acl <no-dsa> (Minor issue, symlink attack not always as root)
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=499076#51