CVE-2021-44758

Description

Heimdal before 7.7.1 allows attackers to cause a NULL pointer dereference in a SPNEGO acceptor via a preferred_mech_type of GSS_C_NO_OID and a nonzero initial_response value to send_accept.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.35%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/heimdal/heimdal/security/advisories/GHSA-69h9-669w-88xv third party advisory
https://github.com/heimdal/heimdal/commit/f9ec7002cdd526ae84fbacbf153162e118f22580 third party advisory patch
https://security.gentoo.org/glsa/202310-06

Frequently Asked Questions

What is the severity of CVE-2021-44758?
CVE-2021-44758 has been scored as a high severity vulnerability.
How to fix CVE-2021-44758?
To fix CVE-2021-44758, 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-2021-44758 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-44758 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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