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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
mitreCNA
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CVEADP
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CISA-ADPADP
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 56%
VendorProductVersion
heimdal_projectheimdal
𝑥
< 7.7.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
heimdal
bullseye (security)
7.7.0+dfsg-2+deb11u3
fixed
bullseye
7.7.0+dfsg-2+deb11u3
fixed
bookworm
7.8.git20221117.28daf24+dfsg-2
fixed
sid
7.8.git20221117.28daf24+dfsg-8
fixed
trixie
7.8.git20221117.28daf24+dfsg-8
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
heimdal
noble
needed
mantic
ignored
lunar
ignored
kinetic
ignored
jammy
needed
focal
Fixed 7.7.0+dfsg-1ubuntu1.3
released
bionic
Fixed 7.5.0+dfsg-1ubuntu0.3
released
xenial
Fixed 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3
released
trusty
Fixed 1.6~git20131207+dfsg-1ubuntu1.2+esm3
released
Common Weakness Enumeration
References
https://github.com/heimdal/heimdal/commit/f9ec7002cdd526ae84fbacbf153162e118f22580
https://github.com/heimdal/heimdal/security/advisories/GHSA-69h9-669w-88xv
https://security.gentoo.org/glsa/202310-06
https://github.com/heimdal/heimdal/commit/f9ec7002cdd526ae84fbacbf153162e118f22580
https://github.com/heimdal/heimdal/security/advisories/GHSA-69h9-669w-88xv
https://security.gentoo.org/glsa/202310-06