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Gentoo Linux Security Advisory GLSA 200512-05 |
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http://security.gentoo.org/ |
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Severity: High |
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Title: Xmail: Privilege escalation through sendmail |
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Date: December 14, 2005 |
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Bugs: #109381 |
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ID: 200512-05 |
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Synopsis |
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======== |
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|
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The sendmail program in Xmail is vulnerable to a buffer overflow, |
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potentially resulting in local privilege escalation. |
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Background |
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========== |
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Xmail is an Internet and intranet mail 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 mail-mta/xmail < 1.22 >= 1.22 |
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Description |
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=========== |
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|
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iDEFENSE reported that the AddressFromAtPtr function in the sendmail |
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program fails to check bounds on arguments passed from other functions, |
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and as a result an exploitable stack overflow condition occurs when |
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specifying the "-t" command line option. |
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Impact |
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====== |
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A local attacker can make a malicious call to sendmail, potentially |
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resulting in code execution with elevated privileges. |
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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 Xmail users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=mail-mta/xmail-1.22" |
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References |
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========== |
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[ 1 ] CVE-2005-2943 |
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http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2943 |
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[ 2 ] iDEFENSE Security Advisory |
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http://www.idefense.com/application/poi/display?id=321&type=vulnerabilities&flashstatus=true |
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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-200512-05.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 2005 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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