Integer overflow in the rsCStrExtendBuf function in runtime/stringbuf.c in the imfile module in rsyslog 4.x before 4.6.6, 5.x before 5.7.4, and 6.x before 6.1.4 allows local users to cause a denial of service (daemon hang) via a large file, which triggers a heap-based buffer overflow.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Rsyslog | Rsyslog | 4.1.0 (including) | 4.1.0 (including) |
| Rsyslog | Rsyslog | 4.1.1 (including) | 4.1.1 (including) |
| Rsyslog | Rsyslog | 4.1.2 (including) | 4.1.2 (including) |
| Rsyslog | Rsyslog | 4.1.3 (including) | 4.1.3 (including) |
| Rsyslog | Rsyslog | 4.1.4 (including) | 4.1.4 (including) |
| Rsyslog | Rsyslog | 4.1.5 (including) | 4.1.5 (including) |
| Rsyslog | Rsyslog | 4.1.6 (including) | 4.1.6 (including) |
| Rsyslog | Rsyslog | 4.1.7 (including) | 4.1.7 (including) |
| Rsyslog | Rsyslog | 4.2.0 (including) | 4.2.0 (including) |
| Rsyslog | Rsyslog | 4.3.0 (including) | 4.3.0 (including) |
| Rsyslog | Rsyslog | 4.3.1 (including) | 4.3.1 (including) |
| Rsyslog | Rsyslog | 4.3.2 (including) | 4.3.2 (including) |
| Rsyslog | Rsyslog | 4.4.0 (including) | 4.4.0 (including) |
| Rsyslog | Rsyslog | 4.4.1 (including) | 4.4.1 (including) |
| Rsyslog | Rsyslog | 4.4.2 (including) | 4.4.2 (including) |
| Rsyslog | Rsyslog | 4.5.0 (including) | 4.5.0 (including) |
| Rsyslog | Rsyslog | 4.5.1 (including) | 4.5.1 (including) |
| Rsyslog | Rsyslog | 4.5.2 (including) | 4.5.2 (including) |
| Rsyslog | Rsyslog | 4.5.3 (including) | 4.5.3 (including) |
| Rsyslog | Rsyslog | 4.5.4 (including) | 4.5.4 (including) |
| Rsyslog | Rsyslog | 4.5.5 (including) | 4.5.5 (including) |
| Rsyslog | Rsyslog | 4.5.6 (including) | 4.5.6 (including) |
| Rsyslog | Rsyslog | 4.5.7 (including) | 4.5.7 (including) |
| Rsyslog | Rsyslog | 4.5.8 (including) | 4.5.8 (including) |
| Rsyslog | Rsyslog | 4.6.0 (including) | 4.6.0 (including) |
| Rsyslog | Rsyslog | 4.6.1 (including) | 4.6.1 (including) |
| Rsyslog | Rsyslog | 4.6.2 (including) | 4.6.2 (including) |
| Rsyslog | Rsyslog | 4.6.3 (including) | 4.6.3 (including) |
| Rsyslog | Rsyslog | 4.6.4 (including) | 4.6.4 (including) |
| Rsyslog | Rsyslog | 4.6.5 (including) | 4.6.5 (including) |
| Red Hat Enterprise Linux 6 | RedHat | rsyslog-0:5.8.10-2.el6 | * |
| Rsyslog | Ubuntu | natty | * |
| Rsyslog | Ubuntu | upstream | * |
References
- http://bugzilla.adiscon.com/show_bug.cgi?id=221
- http://git.adiscon.com/?p=rsyslog.git%3Ba=commit%3Bh=6bad782f154b7f838c7371bf99c13f6dc4ec4101
- http://rsyslog.com/changelog-for-4-6-6-v4-stable/
- http://rsyslog.com/changelog-for-5-7-4-v5-beta/
- http://rsyslog.com/changelog-for-6-1-4-devel/
- http://secunia.com/advisories/45848
- http://secunia.com/advisories/47698
- http://www.openwall.com/lists/oss-security/2011/12/22/2
- http://www.securityfocus.com/bid/51171
- http://www.securitytracker.com/id?1026556
- http://www.ubuntu.com/usn/USN-1338-1
- https://bugzilla.redhat.com/show_bug.cgi?id=769822
- http://bugzilla.adiscon.com/show_bug.cgi?id=221
- http://git.adiscon.com/?p=rsyslog.git%3Ba=commit%3Bh=6bad782f154b7f838c7371bf99c13f6dc4ec4101
- http://rsyslog.com/changelog-for-4-6-6-v4-stable/
- http://rsyslog.com/changelog-for-5-7-4-v5-beta/
- http://rsyslog.com/changelog-for-6-1-4-devel/
- http://secunia.com/advisories/45848
- http://secunia.com/advisories/47698
- http://www.openwall.com/lists/oss-security/2011/12/22/2
- http://www.securityfocus.com/bid/51171
- http://www.securitytracker.com/id?1026556
- http://www.ubuntu.com/usn/USN-1338-1
- https://bugzilla.redhat.com/show_bug.cgi?id=769822