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Gentoo Linux Security Advisory GLSA 200411-24 |
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http://security.gentoo.org/ |
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Severity: High |
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Title: BNC: Buffer overflow vulnerability |
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Date: November 16, 2004 |
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Bugs: #70674 |
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ID: 200411-24 |
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Synopsis |
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======== |
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|
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BNC contains a buffer overflow vulnerability that may lead to Denial of |
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Service and execution of arbitrary code. |
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Background |
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========== |
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BNC (BouNCe) is an IRC proxy server. |
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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 < 2.9.1 >= 2.9.1 |
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Description |
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=========== |
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|
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Leon Juranic discovered that BNC fails to do proper bounds checking |
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when checking server response. |
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Impact |
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====== |
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An attacker could exploit this to cause a Denial of Service and |
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potentially execute arbitary code with the permissions of the user |
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running BNC. |
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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 --ask --oneshot --verbose ">=net-irc/bnc-2.9.1" |
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References |
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========== |
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[ 1 ] BNC ChangeLog |
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http://gotbnc.com/changes.html |
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[ 2 ] LSS-2004-11-03 |
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http://security.lss.hr/en/index.php?page=details&ID=LSS-2004-11-03 |
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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-200411-24.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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http://creativecommons.org/licenses/by-sa/2.0 |
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