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[ GLSA 200505-04 ] GnuTLS: Denial of Service vulnerability
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GLSA
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Joined: 12 May 2004
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PostPosted: Mon May 09, 2005 9:04 am    Post subject: [ GLSA 200505-04 ] GnuTLS: Denial of Service vulnerability Reply with quote

Gentoo Linux Security Advisory

Title: GnuTLS: Denial of Service vulnerability (GLSA 200505-04)
Severity: normal
Exploitable: remote
Date: May 09, 2005
Bug(s): #90726
ID: 200505-04

Synopsis

The GnuTLS library is vulnerable to Denial of Service attacks.

Background

GnuTLS is a free TLS 1.0 and SSL 3.0 implementation for the GNU project.

Affected Packages

Package: net-libs/gnutls
Vulnerable: < 1.2.3
Unaffected: >= 1.2.3
Unaffected: >= 1.0.25 < 1.0.26
Architectures: All supported architectures


Description

A vulnerability has been discovered in the record packet parsing in the GnuTLS library. Additionally, a flaw was also found in the RSA key export functionality.

Impact

A remote attacker could exploit this vulnerability and cause a Denial of Service to any application that utilizes the GnuTLS library.

Workaround

There is no known workaround at this time.

Resolution

All GnuTLS users should remove the existing installation and upgrade to the latest version:
Code:
# emerge --sync
# emerge --unmerge gnutls
# emerge --ask --oneshot --verbose net-libs/gnutls
Due to small API changes with the previous version, please do the following to ensure your applications are using the latest GnuTLS that you just emerged.
Code:
# revdep-rebuild --soname-regexp libgnutls.so.1[0-1]
Previously exported RSA keys can be fixed by executing the following command on the key files:
Code:
# certtool -k infile outfile


References

GnuTLS Announcement
CAN-2005-1431


Last edited by GLSA on Sat Nov 18, 2006 4:16 am; edited 3 times in total
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