CVE-2017-12966 Denial of service in n/a
Remote attackers can cause a denial of service via segmentation fault in asn1c by submitting a crafted .asn1 file.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2017-12966?
CVE-2017-12966 is a medium-severity denial of service vulnerability in n/a, published on 20 Aug 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The asn1f_lookup_symbol_impl function in asn1fix_retrieve.c in libasn1fix.a in asn1c 0.9.28 allows remote attackers to cause a denial of service (segmentation fault) via a crafted .asn1 file.
Weakness: CWE-119
Which versions are affected by CVE-2017-12966?
It affects 1 product.
Linux distribution packages (1)
asn1c openSUSE:Tumbleweed | All versions | 0.9.29-1.1 |
Products include Asn1c Project Asn1c.
How do I fix CVE-2017-12966?
Apply the vendor's patch.
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-2017-12966 being exploited?
There is no known exploitation of CVE-2017-12966 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2017-12966, GHSA-968h-hqr4-4xp2, openSUSE-SU-2026:11106-1.