Race condition in pigz before 2.2.5 uses permissions derived from the umask when compressing a file before setting that files permissions to match those of the original file, which might allow local users to bypass intended access permissions while compression is occurring.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Pigz | Zlib | * | 2.2.4-1 (including) |
| Pigz | Ubuntu | lucid | * |
| Pigz | Ubuntu | oneiric | * |
| Pigz | Ubuntu | precise | * |
| Pigz | Ubuntu | quantal | * |
| Pigz | Ubuntu | raring | * |
| Pigz | Ubuntu | saucy | * |
| Pigz | Ubuntu | upstream | * |
| Pigz | Ubuntu | utopic | * |
| Pigz | Ubuntu | vivid | * |
| Pigz | Ubuntu | wily | * |
References
- http://lists.opensuse.org/opensuse-updates/2013-03/msg00106.html
- http://mail.zlib.net/pipermail/pigz-announce_zlib.net/2012-July/000006.html
- http://www.openwall.com/lists/oss-security/2013/02/15/4
- http://www.openwall.com/lists/oss-security/2013/02/16/3
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=700608
- http://lists.opensuse.org/opensuse-updates/2013-03/msg00106.html
- http://mail.zlib.net/pipermail/pigz-announce_zlib.net/2012-July/000006.html
- http://www.openwall.com/lists/oss-security/2013/02/15/4
- http://www.openwall.com/lists/oss-security/2013/02/16/3
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=700608