rsync xattr buffer overflow

rsync-xattr-bo (41766)

High Risk

Description:

rsync is vulnerable to a buffer overflow, caused by an integer overflow error when extended attribute (xattr) support is enabled. An attacker could exploit this vulnerability using unknown attack vectors to overflow a buffer and execute arbitrary code on the system with elevated privileges or cause the application to crash.

Platforms Affected:

• Canonical, Ubuntu 7.04
• Canonical, Ubuntu 7.10
• Debian, Debian Linux 4.0
• Gentoo, Linux
• MandrakeSoft, Mandrake Linux 2007
• MandrakeSoft, Mandrake Linux 2007 X86_64
• MandrakeSoft, Mandrake Linux 2007.1 X86_64
• MandrakeSoft, Mandrake Linux 2007.1
• MandrakeSoft, Mandrake Linux 2008.0 X86_64
• MandrakeSoft, Mandrake Linux 2008.0
• MandrakeSoft, Mandrake Linux 2008.1
• MandrakeSoft, Mandrake Linux 2008.1 X86_64
• MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
• MandrakeSoft, Mandrake Linux Corporate Server 3.0
• MandrakeSoft, Mandrake Linux Corporate Server 4.0 X86_64
• MandrakeSoft, Mandrake Linux Corporate Server 4.0
• Samba, Rsync 2.6.9
• Samba, Rsync 2.7.0
• Samba, Rsync 2.7.1
• Samba, Rsync 2.7.2
• Samba, Rsync 2.7.3
• Samba, Rsync 2.7.4
• Samba, Rsync 2.7.5
• Samba, Rsync 2.7.6
• Samba, Rsync 2.7.7
• Samba, Rsync 2.7.8
• Samba, Rsync 2.7.9
• Samba, Rsync 2.8.0
• Samba, Rsync 2.8.1
• Samba, Rsync 2.8.2
• Samba, Rsync 2.8.3
• Samba, Rsync 2.8.4
• Samba, Rsync 2.8.5
• Samba, Rsync 2.8.6
• Samba, Rsync 2.8.7
• Samba, Rsync 2.8.8
• Samba, Rsync 2.8.9
• Samba, Rsync 2.9.0
• Samba, Rsync 2.9.1
• Samba, Rsync 2.9.2
• Samba, Rsync 2.9.3
• Samba, Rsync 2.9.4
• Samba, Rsync 2.9.5
• Samba, Rsync 2.9.6
• Samba, Rsync 2.9.7
• Samba, Rsync 2.9.8
• Samba, Rsync 2.9.9
• Samba, Rsync 3.0.0
• Samba, Rsync 3.0.1

Remedy:

Refer to Rsync Security Advisories, April 8th, 2008 for patch, upgrade or suggested workaround information. See References.

Consequences:

Gain Access

References:

• Rsync Security Advisories, April 8th, 2008, Xattr security fix in 3.0.2 at http://samba.anu.edu.au/rsync/security.html#s3_0_2.
• rsync-announce Mailing List, Tue, 08 Apr 2008 10:02:45 -0700, Rsync 3.0.2 released w/xattr security fix (attn: 2.6.9 onward) at http://www.mail-archive.com/rsync-announce@lists.samba.org/msg00057.html.
• Samba Web site, rsync at http://samba.org/rsync/.
• BID-28726: Rsync 'xattr' Support Integer Overflow Vulnerability
• CVE-2008-1720: Buffer overflow in rsync 2.6.9 to 3.0.1, with extended attribute (xattr) support enabled, might allow remote attackers to execute arbitrary code via unknown vectors.
• DSA-1545: rsync -- integer overflow
• FrSIRT/ADV-2008-1191: rsync Extended Attribute Support Remote Buffer Overflow Vulnerability
• FrSIRT/ADV-2008-1215: cwRsync Security Update Fixes xattr Buffer Overflow Vulnerability
• GLSA-200804-16: rsync: Execution of arbitrary code
• MDVSA-2008:084: Updated rsync packages fix vulnerability
• SA29668: rsync "xattr" Integer Overflow Vulnerability
• SA29788: cwRsync "xattr" Integer Overflow Vulnerability
• SECTRACK ID: 1019835: Rsync Buffer Overflow in Extended Attribute Support Code Lets Remote Users Execute Arbitrary Code
• SUSE-SR:2008:011: SUSE Security Summary Report
• USN-600-1: rsync vulnerability

Reported:

Apr 08, 2008

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