CVE-2022-42898

PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has "a similar bug."
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
mitreCNA
---
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CVEADP
---
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CISA-ADPADP
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 90%
VendorProductVersion
mitkerberos_5
1.8 ≤
𝑥
< 1.19.4
mitkerberos_5
1.20
mitkerberos_5
1.20:beta1
heimdal_projectheimdal
𝑥
< 7.7.1
sambasamba
𝑥
< 4.15.12
sambasamba
4.16.0 ≤
𝑥
< 4.16.7
sambasamba
4.17.0 ≤
𝑥
< 4.17.3
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
ignored
buster
ignored
bookworm
7.8.git20221117.28daf24+dfsg-2
fixed
sid
7.8.git20221117.28daf24+dfsg-8
fixed
trixie
7.8.git20221117.28daf24+dfsg-8
fixed
krb5
bullseye (security)
1.18.3-6+deb11u5
fixed
bullseye
1.18.3-6+deb11u5
ignored
buster
ignored
bookworm
1.20.1-2+deb12u2
fixed
bookworm (security)
1.20.1-2+deb12u2
fixed
sid
1.21.3-3
fixed
trixie
1.21.3-3
fixed
samba
bullseye (security)
vulnerable
bullseye
ignored
buster
ignored
bookworm
2:4.17.12+dfsg-0+deb12u1
fixed
bookworm (security)
2:4.17.12+dfsg-0+deb12u1
fixed
sid
2:4.21.1+dfsg-2
fixed
trixie
2:4.21.1+dfsg-2
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
krb5
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
Fixed 1.20-1ubuntu0.1
released
jammy
Fixed 1.19.2-2ubuntu0.1
released
focal
Fixed 1.17-6ubuntu4.2
released
bionic
Fixed 1.16-2ubuntu0.3
released
xenial
Fixed 1.13.2+dfsg-5ubuntu2.2+esm3
released
trusty
Fixed 1.12+dfsg-2ubuntu5.4+esm3
released
samba
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
Fixed 2:4.16.8+dfsg-0ubuntu1
released
jammy
Fixed 2:4.15.13+dfsg-0ubuntu1
released
focal
Fixed 2:4.15.13+dfsg-0ubuntu0.20.04.1
released
bionic
needed
xenial
needs-triage
trusty
needed