Vulnerability · Published Feb 14, 2022 · Assigned by mitre
CVE-2021-46463
Critical 9.8
In plain English
A critical-severity security flaw in the nginx package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 77% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)1.7%top 23.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
njs through 0.7.1, used in NGINX, was discovered to contain a control flow hijack caused by a Type Confusion vulnerability in njs_promise_perform_then().
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | nginx | 1.20.2-r2 | ALPINE-CVE-2021-46463 |
| Alpine:v3.21 | nginx | 1.20.2-r2 | ALPINE-CVE-2021-46463 |
| Alpine:v3.22 | nginx | 1.20.2-r2 | ALPINE-CVE-2021-46463 |
| Alpine:v3.23 | nginx | 1.20.2-r2 | ALPINE-CVE-2021-46463 |
| Alpine:v3.24 | nginx | 1.20.2-r2 | ALPINE-CVE-2021-46463 |
| Alpine:v3.20 | njs | 0.7.3-r0 | ALPINE-CVE-2021-46463 |
| Alpine:v3.21 | njs | 0.7.3-r0 | ALPINE-CVE-2021-46463 |
| Alpine:v3.22 | njs | 0.7.3-r0 | ALPINE-CVE-2021-46463 |
| Alpine:v3.23 | njs | 0.7.3-r0 | ALPINE-CVE-2021-46463 |
| Alpine:v3.24 | njs | 0.7.3-r0 | ALPINE-CVE-2021-46463 |
Affected products (as reported)
References
- https://github.com/nginx/njs/issues/447 x_refsource_MISC
- https://github.com/nginx/njs/commit/6a40a85ff239497c6458c7dbef18f6a2736fe992 x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20220303-0007/ x_refsource_CONFIRM