PRNG Seed Error Affecting nss package, versions <0:3.36.0-7.amzn2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-AMZN2-NSS-1666083
- published27 Sept 2021
- disclosed29 Apr 2019
Introduced: 29 Apr 2019
CVE-2018-12384 (opens in a new tab)How to fix?
Upgrade Amazon-Linux:2 nss to version 0:3.36.0-7.amzn2 or higher.
This issue was patched in ALAS2-2018-1095.
NVD Description
Note: Versions mentioned in the description apply only to the upstream nss package and not the nss package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2 relevant fixed versions and status.
When handling a SSLv2-compatible ClientHello request, the server doesn't generate a new random value but sends an all-zero value instead. This results in full malleability of the ClientHello for SSLv2 used for TLS 1.2 in all versions prior to NSS 3.39. This does not impact TLS 1.3.