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Gentoo Linux Security Advisory GLSA 201006-21 |
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http://security.gentoo.org/ |
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|
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Severity: High |
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Title: UnrealIRCd: Multiple vulnerabilities |
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Date: June 14, 2010 |
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Bugs: #260806, #323691 |
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ID: 201006-21 |
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|
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Synopsis |
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======== |
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|
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Multiple vulnerabilities in UnrealIRCd might allow remote attackers to |
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compromise the "unrealircd" account, or cause a Denial of Service. |
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|
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Background |
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========== |
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|
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UnrealIRCd is an Internet Relay Chat (IRC) daemon. |
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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/unrealircd < 3.2.8.1-r1 >= 3.2.8.1-r1 |
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|
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Description |
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=========== |
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|
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Multiple vulnerabilities have been reported in UnrealIRCd: |
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|
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* The vendor reported a buffer overflow in the user authorization |
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code. |
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|
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* The vendor reported that the distributed source code of UnrealIRCd |
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was compromised and altered to include a system() call that could be |
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called with arbitrary user input. |
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|
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Impact |
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====== |
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|
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A remote attacker could exploit these vulnerabilities to cause the |
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execution of arbitrary commands with the privileges of the user running |
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UnrealIRCd, or a Denial of Service condition. NOTE: By default |
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UnrealIRCd on Gentoo is run with the privileges of the "unrealircd" |
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user. |
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|
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Workaround |
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========== |
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|
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There is no known workaround at this time. |
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|
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Resolution |
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========== |
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|
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All UnrealIRCd users should upgrade to the latest version: |
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|
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=net-irc/unrealircd-3.2.8.1-r1" |
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|
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References |
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========== |
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|
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[ 1 ] UnrealIRCd Security Advisory 20090413 |
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http://www.unrealircd.com/txt/unrealsecadvisory.20090413.txt |
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[ 2 ] UnrealIRCd Security Advisory 20100612 |
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http://www.unrealircd.com/txt/unrealsecadvisory.20100612.txt |
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|
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Availability |
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============ |
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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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|
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http://security.gentoo.org/glsa/glsa-201006-21.xml |
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|
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Concerns? |
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========= |
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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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https://bugs.gentoo.org. |
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|
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License |
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======= |
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|
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Copyright 2010 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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|
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http://creativecommons.org/licenses/by-sa/2.5 |