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Gentoo Linux Security Advisory GLSA 200605-05 |
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http://security.gentoo.org/ |
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Severity: High |
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Title: rsync: Potential integer overflow |
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Date: May 06, 2006 |
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Bugs: #131631 |
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ID: 200605-05 |
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Synopsis |
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======== |
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|
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An attacker having write access to an rsync module might be able to |
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execute arbitrary code on an rsync server. |
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Background |
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========== |
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|
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rsync is a server and client utility that provides fast incremental |
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file transfers. It is used to efficiently synchronize files between |
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hosts and is used by emerge to fetch Gentoo's Portage tree. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 net-misc/rsync < 2.6.8 >= 2.6.8 |
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|
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Description |
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=========== |
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|
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An integer overflow was found in the receive_xattr function from the |
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extended attributes patch (xattr.c) for rsync. The vulnerable function |
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is only present when the "acl" USE flag is set. |
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|
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Impact |
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====== |
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|
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A remote attacker with write access to an rsync module could craft |
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malicious extended attributes which would trigger the integer overflow, |
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potentially resulting in the execution of arbitrary code with the |
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rights of the rsync daemon. |
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|
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Workaround |
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========== |
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Do not provide write access to an rsync module to untrusted parties. |
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Resolution |
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========== |
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All rsync users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=net-misc/rsync-2.6.8" |
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|
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References |
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========== |
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[ 1 ] CVE-2006-2083 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2083 |
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|
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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http://security.gentoo.org/glsa/glsa-200605-05.xml |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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|
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License |
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======= |
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Copyright 2006 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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|
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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http://creativecommons.org/licenses/by-sa/2.0 |
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