Vulnerability Details : CVE-2019-12995
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.
Vulnerability category: Memory Corruption
Products affected by CVE-2019-12995
- cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-12995
0.65%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 69 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-12995
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2019-12995
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-12995
-
https://github.com/istio/istio/issues/15084
JWT authentication causing "Epoch 0 terminated with an error" in Envoy · Issue #15084 · istio/istio · GitHubThird Party Advisory
-
https://istio.io/about/notes/
Istio / Release NotesRelease Notes;Vendor Advisory
-
https://github.com/istio/istio.io/pull/4555
1.2.2 release notes by fpesce · Pull Request #4555 · istio/istio.io · GitHubThird Party Advisory
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