rsync f_name() function buffer overflow
| rsync-fname-bo (36072) |  High Risk |
Description:
rsync is vulnerable to multiple stack-based buffer overflows, caused by improper bounds checking by the f_name() function. By sending an overly long directory name, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
Platforms Affected:
- Canonical, Ubuntu 6.06 LTS
- Canonical, Ubuntu 6.10
- Canonical, Ubuntu 7.04
- Debian, Debian Linux 4.0
- Gentoo, Linux
- Samba, Rsync 2.6.9
- SuSE, SuSE Linux
Remedy:
For SUSE Linux:
Refer to SUSE-SR:2007:017 for patch, upgrade, or suggested workaround information. See References.
For Ubuntu Linux (rsync):
Refer to USN-500-1 for patch, upgrade, or suggested workaround information. See References.
For Debian GNU/Linux (rsync):
Refer to DSA-1360-1 for patch, upgrade, or suggested workaround information. See References.
For Gentoo Linux:
Refer to GLSA 200709-13 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Gain Access
References:
- C Skills Blog - Mittwoch, 15. August 2007, rsync 2.6.9 contains two off by one stack overflows at http://c-skills.blogspot.com/2007/08/cve-2007-4091.html.
- Samba Web site, rsync at http://samba.org/rsync/.
- BID-25336: Rsync F_Name Off-By-One Buffer Overflow Vulnerability
- CVE-2007-4091: Multiple off-by-one errors in the sender.c in rsync 2.6.9 might allow remote attackers to execute arbitrary code via directory names that are not properly handled when calling the f_name function.
- DSA-1360: rsync -- buffer overflow
- FrSIRT/ADV-2007-2915: rsync f_name() Function Directory Name Handling Off-By-One Vulnerability
- GLSA-200709-13: rsync: Two buffer overflows
- SA26493: rsync "f_name()" Off-By-One Vulnerability
- SUSE-SR:2007:017: SUSE Security Summary Report
- USN-500-1: rsync vulnerability
Reported:
Aug 15, 2007
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