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Debian LTS Advisory ([SECURITY] [DLA 1725-1] rsync security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Trail of Bits used the automated vulnerability discovery tools developed for the DARPA Cyber Grand Challenge to audit zlib. As rsync, a fast, versatile, remote (and local) file-copying tool, uses an embedded copy of zlib, those issues are also present in rsync. CVE-2016-9840 In order to avoid undefined behavior, remove offset pointer optimization, as this is not compliant with the C standard. CVE-2016-9841 Only use post-increment to be compliant with the C standard. CVE-2016-9842 In order to avoid undefined behavior, do not shift negative values, as this is not compliant with the C standard. CVE-2016-9843 In order to avoid undefined behavior, do not pre-decrement a pointer in big-endian CRC calculation, as this is not compliant with the C standard. CVE-2018-5764 Prevent remote attackers from being able to bypass the argument-sanitization protection mechanism by ignoring --protect-args when already sent by client.
Affected Software
Affected Software
rsync on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
For Debian 8 'Jessie', these problems have been fixed in version 3.1.1-3+deb8u2. We recommend that you upgrade your rsync packages.