CVE-2021-44758
Gentoo Linux Security Advisory 202310-06
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
Heimdal anterior a 7.7.1 permite a los atacantes provocar una desreferencia de puntero NULL en un aceptador SPNEGO a través de preferred_mech_type de GSS_C_NO_OID y un valor nonzero initial_response distinto de cero para send_accept.
It was discovered that Heimdal incorrectly handled certain SPNEGO tokens. A remote attacker could possibly use this issue to cause a denial of service. Evgeny Legerov discovered that Heimdal incorrectly handled memory when performing certain DES decryption operations. A remote attacker could use this issue to cause a denial of service, or possibly execute arbitrary code.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-12-08 CVE Reserved
- 2022-11-23 CVE Published
- 2024-08-16 EPSS Updated
- 2025-02-13 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-476: NULL Pointer Dereference
CAPEC
References (3)
| URL | Tag | Source |
|---|---|---|
| https://github.com/heimdal/heimdal/security/advisories/GHSA-69h9-669w-88xv | Third Party Advisory | |
| https://security.gentoo.org/glsa/202310-06 |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://github.com/heimdal/heimdal/commit/f9ec7002cdd526ae84fbacbf153162e118f22580 | 2023-10-08 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Heimdal Project Search vendor "Heimdal Project" | Heimdal Search vendor "Heimdal Project" for product "Heimdal" | < 7.7.1 Search vendor "Heimdal Project" for product "Heimdal" and version " < 7.7.1" | - |
Affected
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