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Debian Security Bug TrackerDEBIANCVE:CVE-2021-44758HistoryDec 26, 2022 - 5:15 a.m.
CVE-2021-44758
2022-12-2605:15:10
Debian Security Bug Tracker
security-tracker.debian.org
28
heimdal
null pointer
spnego
acceptor
preferred_mech_type
gss_c_no_oid
initial_response
send_accept
unix
CVSS3
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
0.001
Percentile
47.2%
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.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | heimdal | < 7.8.git20221115.a6cf945+dfsg-1 | heimdal_7.8.git20221115.a6cf945+dfsg-1_all.deb |
| Debian | 11 | all | heimdal | < 7.7.0+dfsg-2+deb11u2 | heimdal_7.7.0+dfsg-2+deb11u2_all.deb |
| Debian | 999 | all | heimdal | < 7.8.git20221115.a6cf945+dfsg-1 | heimdal_7.8.git20221115.a6cf945+dfsg-1_all.deb |
| Debian | 13 | all | heimdal | < 7.8.git20221115.a6cf945+dfsg-1 | heimdal_7.8.git20221115.a6cf945+dfsg-1_all.deb |
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CVSS3
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
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EPSS
0.001
Percentile
47.2%
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