CVE-2020-27743

Description

libtac in pam_tacplus through 1.5.1 lacks a check for a failure of RAND_bytes()/RAND_pseudo_bytes(). This could lead to use of a non-random/predictable session_id.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.59%
Third-Party Advisory github.com Third-Party Advisory ietf.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/kravietz/pam_tacplus/pull/163 third party advisory
https://tools.ietf.org/html/rfc8907 third party advisory technical description

Frequently Asked Questions

What is the severity of CVE-2020-27743?
CVE-2020-27743 has been scored as a critical severity vulnerability.
How to fix CVE-2020-27743?
To fix CVE-2020-27743, 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-2020-27743 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-27743 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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