PRNG Seed Error Affecting nss-devel package, versions <0:3.36.0-7.el7_5
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-RHEL7-NSSDEVEL-4786881
- published26 Jul 2021
- disclosed3 Sept 2018
Introduced: 3 Sep 2018
CVE-2018-12384 (opens in a new tab)How to fix?
Upgrade RHEL:7 nss-devel to version 0:3.36.0-7.el7_5 or higher.
This issue was patched in RHSA-2018:2768.
NVD Description
Note: Versions mentioned in the description apply only to the upstream nss-devel package and not the nss-devel package as distributed by RHEL.
See How to fix? for RHEL:7 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.