CVE-2010-1321 Null dereference in n/a
Remote authenticated users can crash the Kerberos daemon via a malformed AP-REQ message due to a NULL pointer dereference in the GSS-API library.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2010-1321?
CVE-2010-1321 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 19 May 2010. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The kg_accept_krb5 function in krb5/accept_sec_context.c in the GSS-API library in MIT Kerberos 5 (aka krb5) through 1.7.1 and 1.8 before 1.8.2, as used in kadmind and other applications, does not properly check for invalid GSS-API tokens, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an AP-REQ message in which the authenticator's checksum field is missing.
Weakness: CWE-476
Which versions are affected by CVE-2010-1321?
It affects 7 products.
Linux distribution packages (40)
krb5 Red Hat:enterprise_linux:3::as | All versions | 0:1.2.7-72 |
krb5-debuginfo Red Hat:enterprise_linux:3::as | All versions | 0:1.2.7-72 |
krb5-devel Red Hat:enterprise_linux:3::as | All versions | 0:1.2.7-72 |
krb5-libs Red Hat:enterprise_linux:3::as | All versions | 0:1.2.7-72 |
krb5-server Red Hat:enterprise_linux:3::as | All versions | 0:1.2.7-72 |
krb5-workstation Red Hat:enterprise_linux:3::as | All versions | 0:1.2.7-72 |
krb5 Red Hat:enterprise_linux:3::desktop | All versions | 0:1.2.7-72 |
krb5-debuginfo Red Hat:enterprise_linux:3::desktop | All versions | 0:1.2.7-72 |
krb5-devel Red Hat:enterprise_linux:3::desktop | All versions | 0:1.2.7-72 |
krb5-libs Red Hat:enterprise_linux:3::desktop | All versions | 0:1.2.7-72 |
krb5-server Red Hat:enterprise_linux:3::desktop | All versions | 0:1.2.7-72 |
krb5-workstation Red Hat:enterprise_linux:3::desktop | All versions | 0:1.2.7-72 |
krb5 Red Hat:enterprise_linux:3::es | All versions | 0:1.2.7-72 |
krb5-debuginfo Red Hat:enterprise_linux:3::es | All versions | 0:1.2.7-72 |
krb5-devel Red Hat:enterprise_linux:3::es | All versions | 0:1.2.7-72 |
krb5-libs Red Hat:enterprise_linux:3::es | All versions | 0:1.2.7-72 |
krb5-server Red Hat:enterprise_linux:3::es | All versions | 0:1.2.7-72 |
krb5-workstation Red Hat:enterprise_linux:3::es | All versions | 0:1.2.7-72 |
krb5 Red Hat:enterprise_linux:3::ws | All versions | 0:1.2.7-72 |
krb5-debuginfo Red Hat:enterprise_linux:3::ws | All versions | 0:1.2.7-72 |
krb5-devel Red Hat:enterprise_linux:3::ws | All versions | 0:1.2.7-72 |
krb5-libs Red Hat:enterprise_linux:3::ws | All versions | 0:1.2.7-72 |
krb5-server Red Hat:enterprise_linux:3::ws | All versions | 0:1.2.7-72 |
krb5-workstation Red Hat:enterprise_linux:3::ws | All versions | 0:1.2.7-72 |
krb5 Red Hat:enterprise_linux:4::as | All versions | 0:1.3.4-62.el4_8.2 |
krb5-debuginfo Red Hat:enterprise_linux:4::as | All versions | 0:1.3.4-62.el4_8.2 |
krb5-devel Red Hat:enterprise_linux:4::as | All versions | 0:1.3.4-62.el4_8.2 |
krb5-libs Red Hat:enterprise_linux:4::as | All versions | 0:1.3.4-62.el4_8.2 |
krb5-server Red Hat:enterprise_linux:4::as | All versions | 0:1.3.4-62.el4_8.2 |
krb5-workstation Red Hat:enterprise_linux:4::as | All versions | 0:1.3.4-62.el4_8.2 |
krb5 Red Hat:enterprise_linux:4::desktop | All versions | 0:1.3.4-62.el4_8.2 |
krb5-debuginfo Red Hat:enterprise_linux:4::desktop | All versions | 0:1.3.4-62.el4_8.2 |
krb5-devel Red Hat:enterprise_linux:4::desktop | All versions | 0:1.3.4-62.el4_8.2 |
krb5-libs Red Hat:enterprise_linux:4::desktop | All versions | 0:1.3.4-62.el4_8.2 |
krb5-server Red Hat:enterprise_linux:4::desktop | All versions | 0:1.3.4-62.el4_8.2 |
krb5-workstation Red Hat:enterprise_linux:4::desktop | All versions | 0:1.3.4-62.el4_8.2 |
krb5 Red Hat:enterprise_linux:4::es | All versions | 0:1.3.4-62.el4_8.2 |
krb5-debuginfo Red Hat:enterprise_linux:4::es | All versions | 0:1.3.4-62.el4_8.2 |
krb5-devel Red Hat:enterprise_linux:4::es | All versions | 0:1.3.4-62.el4_8.2 |
krb5-libs Red Hat:enterprise_linux:4::es | All versions | 0:1.3.4-62.el4_8.2 |
Products include Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Mit Kerberos 5, Opensuse Opensuse, Oracle Database Server and 1 more.
How do I fix CVE-2010-1321?
Upgrade to a fixed version.
Is CVE-2010-1321 being exploited?
There is no known exploitation of CVE-2010-1321 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2010-1321, DSA-2052-1, GHSA-pcm6-6x97-2mrc, RHSA-2010:0423.