CVE-2018-6003 Denial of service in n/a
Attackers can cause a denial of service via stack exhaustion in the BER decoder of the Libtasn1 library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-6003?
CVE-2018-6003 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 22 Jan 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in the _asn1_decode_simple_ber function in decoding.c in GNU Libtasn1 before 4.13. Unlimited recursion in the BER decoder leads to stack exhaustion and DoS.
Weakness: CWE-674
Which versions are affected by CVE-2018-6003?
It affects 3 products.
Linux distribution packages (4)
libtasn1 SUSE:Linux Enterprise Desktop 12 SP3 | All versions | 4.9-3.5.1 |
libtasn1 SUSE:Linux Enterprise Server 12 SP3 | All versions | 4.9-3.5.1 |
libtasn1 SUSE:Linux Enterprise Server for SAP Applications 12 SP3 | All versions | 4.9-3.5.1 |
libtasn1 SUSE:Linux Enterprise Software Development Kit 12 SP3 | All versions | 4.9-3.5.1 |
Products include Debian Debian Linux, Fedoraproject Fedora, Gnu Libtasn1.
How do I fix CVE-2018-6003?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2018-6003 being exploited?
There is no known exploitation of CVE-2018-6003 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALPINE-CVE-2018-6003, CLSA-2026-1778604436, DEBIAN-CVE-2018-6003, GHSA-834w-g79f-wrqv, SUSE-SU-2018:0295-1, UBUNTU-CVE-2018-6003.