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Gentoo Linux Security Advisory GLSA 200411-01 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: ppp: Remote 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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|
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pppd contains a vulnerability that may allow an attacker to crash the |
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server. |
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Background |
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========== |
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|
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ppp is a Unix implementation of the Point-to-Point Protocol. |
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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-dialup/ppp < 2.4.2-r7 >= 2.4.2-r7 |
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|
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Description |
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=========== |
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|
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The pppd server improperly verifies header fields, making it vulnerable |
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to denial of service attacks. |
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Impact |
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====== |
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|
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An attacker can cause the pppd server to access memory that it isn't |
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allowed to, causing the server to crash. No code execution is possible |
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with this vulnerability, because no data is getting copied. |
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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 ppp users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=net-dialup/ppp-2.4.2-r7" |
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|
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References |
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========== |
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|
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[ 1 ] BugTraq Advisory |
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http://www.securityfocus.com/archive/1/379450 |
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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-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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|
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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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|
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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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