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Gentoo Linux Security Advisory GLSA 200410-13 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: BNC: Input validation flaw |
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Date: October 15, 2004 |
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Bugs: #66912 |
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ID: 200410-13 |
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Synopsis |
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======== |
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|
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BNC contains an input validation flaw which might allow a remote |
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attacker to issue arbitrary IRC related commands. |
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Background |
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========== |
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BNC is an IRC proxying server |
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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-irc/bnc < 2.8.9 >= 2.8.9 |
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Description |
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=========== |
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A flaw exists in the input parsing of BNC where part of the |
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sbuf_getmsg() function handles the backspace character incorrectly. |
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Impact |
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====== |
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A remote user could issue commands using fake authentication |
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credentials and possibly gain access to scripts running on the client |
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side. |
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Workaround |
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========== |
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There is no known workaround at this time. |
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Resolution |
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========== |
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All BNC users should upgrade to the latest version: |
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# emerge sync |
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# emerge -pv ">=net-irc/bnc-2.8.9" |
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# emerge ">=net-irc/bnc-2.8.9" |
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|
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References |
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========== |
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[ 1 ] BNC Changes |
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http://www.gotbnc.com/changes.html#2.8.9 |
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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-200410-13.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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License |
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======= |
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Copyright 2004 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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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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|
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http://creativecommons.org/licenses/by-sa/1.0 |
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