CVE-2017-11462 Use after free in n/a
A double free vulnerability in MIT Kerberos 5 allows attackers to potentially execute code or cause denial of service via error handling paths.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-11462?
CVE-2017-11462 is a critical use after free vulnerability in Fedoraproject Fedora, published on 13 Sep 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Double free vulnerability in MIT Kerberos 5 (aka krb5) allows attackers to have unspecified impact via vectors involving automatic deletion of security contexts on error.
Weakness: CWE-415
Which versions are affected by CVE-2017-11462?
It affects 2 products.
Linux distribution packages (9)
krb5 SUSE:Linux Enterprise Desktop 12 SP2 | All versions | 1.12.5-40.13.1 |
krb5 SUSE:Linux Enterprise Desktop 12 SP3 | All versions | 1.12.5-40.13.1 |
krb5 SUSE:Linux Enterprise Server 12 SP2 | All versions | 1.12.5-40.13.1 |
krb5 SUSE:Linux Enterprise Server 12 SP3 | All versions | 1.12.5-40.13.1 |
krb5 SUSE:Linux Enterprise Server for Raspberry Pi 12 SP2 | All versions | 1.12.5-40.13.1 |
krb5 SUSE:Linux Enterprise Server for SAP Applications 12 SP2 | All versions | 1.12.5-40.13.1 |
krb5 SUSE:Linux Enterprise Server for SAP Applications 12 SP3 | All versions | 1.12.5-40.13.1 |
krb5 SUSE:Linux Enterprise Software Development Kit 12 SP2 | All versions | 1.12.5-40.13.1 |
krb5 SUSE:Linux Enterprise Software Development Kit 12 SP3 | All versions | 1.12.5-40.13.1 |
Products include Fedoraproject Fedora, Mit Kerberos 5.
How do I fix CVE-2017-11462?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2017-11462 being exploited?
There is no known exploitation of CVE-2017-11462 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as DEBIAN-CVE-2017-11462, GHSA-rr2f-jhmq-594w, SUSE-SU-2017:2659-1, UBUNTU-CVE-2017-11462.