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Gentoo Linux Security Advisory GLSA 201709-04 |
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https://security.gentoo.org/ |
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Severity: Normal |
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Title: mod_gnutls: Certificate validation error |
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Date: September 17, 2017 |
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Bugs: #541038 |
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ID: 201709-04 |
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Synopsis |
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======== |
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|
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A vulnerability in mod_gnutls allows remote attackers to spoof clients |
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via crafted certificates. |
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Background |
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========== |
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|
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mod_gnutls is an extension for Apache's httpd. It uses the GnuTLS |
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library to provide HTTPS. It supports some protocols and features that |
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mod_ssl does not. |
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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 www-apache/mod_gnutls < 0.7.3 >= 0.7.3 |
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|
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Description |
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=========== |
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|
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It was discovered that the authentication hook in mod_gnutls does not |
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validate client's certificates even when option "GnuTLSClientVerify" is |
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set to "require". |
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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 present a crafted certificate and spoof clients |
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data. |
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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 mod_gnutls users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=www-apache/mod_gnutls-0.7.3" |
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|
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References |
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========== |
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[ 1 ] CVE-2015-2091 |
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https://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-2091 |
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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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https://security.gentoo.org/glsa/201709-04 |
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|
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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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https://bugs.gentoo.org. |
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License |
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======= |
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Copyright 2017 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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http://creativecommons.org/licenses/by-sa/2.5 |
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