CVE-2019-12995 Null dereference in n/a
Attackers can cause a segmentation fault in Envoy via mishandled access tokens, leading to service disruption in Istio deployments.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-12995?
CVE-2019-12995 is a high-severity vulnerability in n/a, published on 28 Jun 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Istio before 1.2.2 mishandles certain access tokens, leading to "Epoch 0 terminated with an error" in Envoy. This is related to a jwt_authenticator.cc segmentation fault.
Weakness: CWE-476
Which versions are affected by CVE-2019-12995?
It affects 1 product.
Products include Istio Istio.
How do I fix CVE-2019-12995?
No fix has been published for CVE-2019-12995 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-12995 being exploited?
There is no known exploitation of CVE-2019-12995 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2021-31921 Missing authorization in n/a
- CVE-2021-34824 Information disclosure in n/a
- CVE-2026-31837 Istio JWKS resolver to prevent private key material from being exposed when JWKS fetch fails.
- CVE-2021-39155 Authorization Policy Bypass Due to Case Insensitive Host Comparison
- CVE-2021-39156 Fragments in Path May Lead to Authorization Policy Bypass
Sources
Also known as GHSA-45mv-99hf-m73p.