CVE-2012-1569 Integer overflow in n/a
Remote attackers can cause denial of service or potential code execution via crafted ASN.1 structures due to improper handling of large length values in Libtasn1.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2012-1569?
CVE-2012-1569 is a medium-severity vulnerability in Gnu Gnutls, published on 26 Mar 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The asn1_get_length_der function in decoding.c in GNU Libtasn1 before 2.12, as used in GnuTLS before 3.0.16 and other products, does not properly handle certain large length values, which allows remote attackers to cause a denial of service (heap memory corruption and application crash) or possibly have unspecified other impact via a crafted ASN.1 structure.
Weakness: CWE-189
Which versions are affected by CVE-2012-1569?
It affects 2 products.
Linux distribution packages (16)
libtasn1 Red Hat:enterprise_linux:6::client | All versions | 0:2.3-3.el6_2.1 |
libtasn1-debuginfo Red Hat:enterprise_linux:6::client | All versions | 0:2.3-3.el6_2.1 |
libtasn1-devel Red Hat:enterprise_linux:6::client | All versions | 0:2.3-3.el6_2.1 |
libtasn1-tools Red Hat:enterprise_linux:6::client | All versions | 0:2.3-3.el6_2.1 |
libtasn1 Red Hat:enterprise_linux:6::computenode | All versions | 0:2.3-3.el6_2.1 |
libtasn1-debuginfo Red Hat:enterprise_linux:6::computenode | All versions | 0:2.3-3.el6_2.1 |
libtasn1-devel Red Hat:enterprise_linux:6::computenode | All versions | 0:2.3-3.el6_2.1 |
libtasn1-tools Red Hat:enterprise_linux:6::computenode | All versions | 0:2.3-3.el6_2.1 |
libtasn1 Red Hat:enterprise_linux:6::server | All versions | 0:2.3-3.el6_2.1 |
libtasn1-debuginfo Red Hat:enterprise_linux:6::server | All versions | 0:2.3-3.el6_2.1 |
libtasn1-devel Red Hat:enterprise_linux:6::server | All versions | 0:2.3-3.el6_2.1 |
libtasn1-tools Red Hat:enterprise_linux:6::server | All versions | 0:2.3-3.el6_2.1 |
libtasn1 Red Hat:enterprise_linux:6::workstation | All versions | 0:2.3-3.el6_2.1 |
libtasn1-debuginfo Red Hat:enterprise_linux:6::workstation | All versions | 0:2.3-3.el6_2.1 |
libtasn1-devel Red Hat:enterprise_linux:6::workstation | All versions | 0:2.3-3.el6_2.1 |
libtasn1-tools Red Hat:enterprise_linux:6::workstation | All versions | 0:2.3-3.el6_2.1 |
Products include Gnu Gnutls, Gnu Libtasn1.
How do I fix CVE-2012-1569?
Upgrade to a fixed version.
Is CVE-2012-1569 being exploited?
There is no known exploitation of CVE-2012-1569 in the wild and no public exploit code.
Other vulnerabilities in Gnu Gnutls
Sources
Also known as DSA-2440-1, GHSA-jcv4-2hjq-vv2c, RHSA-2012:0427.