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Gentoo Linux Security Advisory GLSA 200411-01 |
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http://security.gentoo.org/ |
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Severity: Low |
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Title: ppp: No denial of service vulnerability |
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Date: November 01, 2004 |
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Bugs: #69152 |
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ID: 200411-01 |
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Synopsis |
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======== |
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pppd contains a bug that allows an attacker to crash his own |
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connection, but it cannot be used to deny service to other users. |
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Background |
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========== |
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ppp is a Unix implementation of the Point-to-Point Protocol. |
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Description |
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=========== |
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The pppd server improperly verifies header fields, potentially leading |
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to a crash of the pppd process handling the connection. However, since |
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a separate pppd process handles each ppp connection, this would not |
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affect any other connection, or prevent new connections from being |
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established. |
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Impact |
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====== |
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We incorrectly thought that this bug could be exploited to deny service |
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to all ppp users. It is not the case, this bug has no security impact |
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whatsoever. Many thanks to Paul Mackerras from the Samba team for |
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correcting our mistake. |
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Workaround |
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========== |
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There is no need for a workaround. |
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Resolution |
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========== |
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ppp users can keep their current versions. |
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References |
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========== |
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[ 1 ] Incorrect BugTraq Advisory |
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http://www.securityfocus.com/archive/1/379450 |
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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-200411-01.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/1.0 |
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