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Gentoo Linux Security Advisory GLSA 200406-01 |
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http://security.gentoo.org/ |
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Severity: High |
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Title: Ethereal: Multiple security problems |
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Date: June 04, 2004 |
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Bugs: #51022 |
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ID: 200406-01 |
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Synopsis |
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======== |
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|
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Multiple vulnerabilities including one buffer overflow exist in |
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Ethereal, which may allow an attacker to run arbitrary code or crash |
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the program. |
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Background |
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========== |
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|
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Ethereal is a feature rich network protocol analyzer. |
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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-analyzer/ethereal <= 0.10.3 >= 0.10.4 |
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Description |
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=========== |
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|
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There are multiple vulnerabilities in versions of Ethereal earlier than |
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0.10.4, including: |
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|
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* A buffer overflow in the MMSE dissector. |
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* Under specific conditions a SIP packet could make Ethereal crash. |
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* The AIM dissector could throw an assertion, causing Ethereal to |
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crash. |
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* The SPNEGO dissector could dereference a null pointer, causing a |
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crash. |
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|
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Impact |
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====== |
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|
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An attacker could use these vulnerabilities to crash Ethereal or even |
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execute arbitrary code with the permissions of the user running |
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Ethereal, which could be the root user. |
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|
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Workaround |
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========== |
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|
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For a temporary workaround you can disable all affected protocol |
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dissectors by selecting Analyze->Enabled Protocols... and deselecting |
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them from the list. However, it is strongly recommended to upgrade to |
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the latest stable release. |
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Resolution |
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========== |
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All Ethereal users should upgrade to the latest stable version: |
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# emerge sync |
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# emerge -pv ">=net-analyzer/ethereal-0.10.4" |
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# emerge ">=net-analyzer/ethereal-0.10.4" |
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|
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References |
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========== |
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|
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[ 1 ] Ethereal enpa-sa-00014 |
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http://www.ethereal.com/appnotes/enpa-sa-00014.html |
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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-200406-01.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 Technologies, 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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