Buffer overflow in Samba Rsync

1) Buffer overflow

EUVDB-ID: #VU45154

Risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2011-1097

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

rsync 3.x before 3.0.8, when certain recursion, deletion, and ownership options are used, allows remote rsync servers to cause a denial of service (heap memory corruption and application crash) or possibly execute arbitrary code via malformed data.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Rsync: 3.0.0 - 3.0.7

CPE2.3

• cpe:2.3:a:samba:rsync:3.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:samba:rsync:3.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:samba:rsync:3.0.2:*:*:*:*:*:*:*

External links

https://gitweb.samba.org/?p=rsync.git;a=commit;h=83b94efa6b60a3ff5eee4c5f7812c617a90a03f6
https://lists.fedoraproject.org/pipermail/package-announce/2011-April/057641.html
https://lists.fedoraproject.org/pipermail/package-announce/2011-April/057736.html
https://lists.fedoraproject.org/pipermail/package-announce/2011-April/057737.html
https://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html
https://lists.samba.org/archive/rsync/2011-January/025988.html
https://marc.info/?l=bugtraq&m=133226187115472&w=2
https://rsync.samba.org/ftp/rsync/src/rsync-3.0.8-NEWS
https://secunia.com/advisories/44071
https://secunia.com/advisories/44088
https://securitytracker.com/id?1025256
https://www.mandriva.com/security/advisories?name=MDVSA-2011:066
https://www.redhat.com/support/errata/RHSA-2011-0390.html
https://www.vupen.com/english/advisories/2011/0792
https://www.vupen.com/english/advisories/2011/0793
https://www.vupen.com/english/advisories/2011/0873
https://www.vupen.com/english/advisories/2011/0876
https://bugzilla.redhat.com/show_bug.cgi?id=675036
https://bugzilla.samba.org/show_bug.cgi?id=7936

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.