CVE-2014-3467: Medium severity GNU GnuTLS vulnerability
Multiple buffer boundary check issues were discovered in libtasn1 library, causing it to read beyond the boundary of an allocated buffer. An untrusted ASN.1 input could cause an application using the library to crash.
The libtasn1 library is used by the GnuTLS library to parse X.509 certificates. The gnutls packages in Red Hat Enterprise Linux 5 and earlier use bundled libtasn1, packages in Red Hat Enterprise Linux 6 and later depend on the library provided by a separate libtasn1 package.
Upstream commits: http://git.savannah.gnu.org/cgit/libtasn1.git/commit/?id=ff3b5c68cc32e30d19edbbc3a962b2266029f3cc http://git.savannah.gnu.org/cgit/libtasn1.git/commit/?id=0e80d79db71747644394fe3472dad28cd3e7b00b http://git.savannah.gnu.org/cgit/libtasn1.git/commit/?id=154909136c12cfa5c60732b7210827dfb1ec6aee http://git.savannah.gnu.org/cgit/libtasn1.git/commit/?id=37a16434131c6ad8745b9accefec5cecb4cbb5b7 http://git.savannah.gnu.org/cgit/libtasn1.git/commit/?id=cc10a8c5443c751d920cfaca1f104089e43296be http://git.savannah.gnu.org/cgit/libtasn1.git/commit/?id=6fee6745b1bd1a82f16ae9b607855a3e3ab39fc6 http://git.savannah.gnu.org/cgit/libtasn1.git/commit/?id=af0e8cd0bacf47ecce049165d3bc1ed9e861df1c http://git.savannah.gnu.org/cgit/libtasn1.git/commit/?id=609d5c1366fb424f6150c4eed358d246e61cf204 http://git.savannah.gnu.org/cgit/libtasn1.git/commit/?id=51612fca32dda445056ca9a7533bae258acd3ecb
Other sources
Multiple unspecified vulnerabilities in the DER decoder in GNU Libtasn1 before 3.6, as used in GnuTLS, allow remote attackers to cause a denial of service (out-of-bounds read) via crafted ASN.1 data.
— MITRE
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is the severity of CVE-2014-3467?
CVE-2014-3467 is classified as a moderate severity vulnerability due to the potential for application crashes.
How do I fix CVE-2014-3467?
To fix CVE-2014-3467, update libtasn1 to version 3.6 or later.
Which systems are affected by CVE-2014-3467?
CVE-2014-3467 affects various systems that utilize the libtasn1 library and GNU GnuTLS, including specific versions of Red Hat and SUSE distributions.
What type of issue is CVE-2014-3467?
CVE-2014-3467 involves multiple buffer boundary check issues that can lead to reading beyond the allocated buffer.
Can CVE-2014-3467 be exploited remotely?
While CVE-2014-3467 does not specifically allow remote exploitation, it can cause denial of service if an untrusted ASN.1 input is processed.