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Sicherheit: Mangelnde Prüfung von Zertifikaten in mod_gnutls
Aktuelle Meldungen Distributionen
Name: Mangelnde Prüfung von Zertifikaten in mod_gnutls
ID: 201709-04
Distribution: Gentoo
Plattformen: Keine Angabe
Datum: So, 17. September 2017, 22:54
Referenzen: https://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-2091

Originalnachricht

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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
Title: mod_gnutls: Certificate validation error
Date: September 17, 2017
Bugs: #541038
ID: 201709-04

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Synopsis
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A vulnerability in mod_gnutls allows remote attackers to spoof clients
via crafted certificates.

Background
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mod_gnutls is an extension for =E2=80=8BApache's httpd. It uses the =E2=80=
=8BGnuTLS
library to provide HTTPS. It supports some protocols and features that
mod_ssl does not.

Affected packages
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-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 www-apache/mod_gnutls < 0.7.3 >=3D
0.7.3=20

Description
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It was discovered that the authentication hook in mod_gnutls does not
validate client's certificates even when option
"GnuTLSClientVerify" is
set to "require".

Impact
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A remote attacker could present a crafted certificate and spoof clients
data.

Workaround
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There is no known workaround at this time.

Resolution
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All mod_gnutls users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose
">=3Dwww-apache/mod_gnutls-0.7.3"

References
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[ 1 ] CVE-2015-2091
https://nvd.nist.gov/nvd.cfm?cvename=3DCVE-2015-2091

Availability
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This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/201709-04

Concerns?
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Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
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Copyright 2017 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5
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