Vulnerability Monitor

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CVE-2021-44758

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.

Published

2022-12-26T05:15:10.503

Last Modified

2025-04-14T16:15:18.003

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

Weaknesses

Type: Primary
CWE-476
Type: Secondary
CWE-476

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	heimdal_project	heimdal	< 7.7.1	Yes

References

https://github.com/heimdal/heimdal/commit/f9ec7002cdd526ae84fbacbf153162e118f22580 Patch, Third Party Advisory ([email protected])
https://github.com/heimdal/heimdal/security/advisories/GHSA-69h9-669w-88xv Third Party Advisory ([email protected])
https://security.gentoo.org/glsa/202310-06 ([email protected])
https://github.com/heimdal/heimdal/commit/f9ec7002cdd526ae84fbacbf153162e118f22580 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/heimdal/heimdal/security/advisories/GHSA-69h9-669w-88xv Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202310-06 (af854a3a-2127-422b-91ae-364da2661108)