CVE-2017-5462

Description

A flaw in DRBG number generation within the Network Security Services (NSS) library where the internal state V does not correctly carry bits over. The NSS library has been updated to fix this issue to address this issue and Firefox ESR 52.1 has been updated with NSS version 3.28.4. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.

Category

5.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.07% Top 25%
Vendor Advisory gentoo.org Vendor Advisory debian.org Vendor Advisory debian.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Thunderbird
Affected: Mozilla Firefox ESR
Affected: Mozilla Firefox
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2017-5462?
CVE-2017-5462 has been scored as a medium severity vulnerability.
How to fix CVE-2017-5462?
To fix CVE-2017-5462, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-5462 being actively exploited in the wild?
It is possible that CVE-2017-5462 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-5462?
CVE-2017-5462 affects Mozilla Thunderbird, Mozilla Firefox ESR, Mozilla Firefox.
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