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rsync "xattr" Integer Overflow Vulnerability
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Secunia Advisory:
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SA29668
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Release Date:
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2008-04-11
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Popularity:
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4,902 views
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Critical:
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Moderately critical
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Impact:
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DoS
System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | rsync 2.x
rsync 3.x
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Subscribe:
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| CVE reference: | CVE-2008-1720
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Description:
A vulnerability has been reported in rsync, which can potentially be exploited by malicious users to cause a DoS (Denial of Service) or to compromise a vulnerable system.
The vulnerability is caused due to an integer overflow error within the extended attributes (xattr) support and can be exploited to cause a buffer overflow.
Successful exploitation may allow execution of arbitrary code, but requires that the extended attributes support is enabled.
The vulnerability is reported in version 2.6.9 through 3.0.1.
NOTE: Version 2.6.9 had to be patched to support extended attributes.
Solution:
Update to version 3.0.2 or apply patch.
http://samba.anu.edu.au/rsync/download.html
http://rsync.samba.org/ftp/rsync/security/rsync-3.0.1-xattr-alloc.diff
Provided and/or discovered by:
The vendor credits Sebastian Krahmer.
Original Advisory:
http://samba.anu.edu.au/rsync/security.html#s3_0_2
http://www.mail-archive.com/rsync-announce@lists.samba.org/msg00057.html
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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