HighFix available
heimdal, krb5 and 1 more products — security advisory
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."
- Products
- heimdal, krb5, samba
- Affected versions
- Not specified
- Fixed versions
- 1.19.4-r0, 1.20.1-r0, 4.15.12-r0, 4.16.7-r0, 7.7.1-r0
- CVEs
- CVE-2022-42898
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 14:18 UTC · Revision 1
Source evidence
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."
osv:ALPINE-CVE-2022-42898
heimdal
Fixed versions: 7.7.1-r0
heimdal
Fixed versions: 7.7.1-r0
heimdal
Fixed versions: 7.7.1-r0
heimdal
Fixed versions: 7.7.1-r0
heimdal
Fixed versions: 7.7.1-r0
heimdal
Fixed versions: 7.7.1-r0
heimdal
Fixed versions: 7.7.1-r0
heimdal
Fixed versions: 7.7.1-r0
heimdal
Fixed versions: 7.7.1-r0
heimdal
Fixed versions: 7.7.1-r0
heimdal
Fixed versions: 7.7.1-r0
krb5
Fixed versions: 1.19.4-r0
krb5
Fixed versions: 1.19.4-r0
krb5
Fixed versions: 1.20.1-r0
krb5
Fixed versions: 1.20.1-r0
krb5
Fixed versions: 1.20.1-r0
krb5
Fixed versions: 1.20.1-r0
krb5
Fixed versions: 1.20.1-r0
krb5
Fixed versions: 1.20.1-r0
krb5
Fixed versions: 1.20.1-r0
krb5
Fixed versions: 1.20.1-r0
samba
Fixed versions: 4.15.12-r0
samba
Fixed versions: 4.15.12-r0
samba
Fixed versions: 4.16.7-r0
samba
Fixed versions: 4.16.7-r0
samba
Fixed versions: 4.16.7-r0
samba
Fixed versions: 4.16.7-r0
samba
Fixed versions: 4.16.7-r0
samba
Fixed versions: 4.16.7-r0
samba
Fixed versions: 4.16.7-r0
Complete source record
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],
"modified": "2026-10-15T07:17:54.268295473Z",
"provider": "osv",
"upstream": [
"CVE-2022-42898"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2022-42898"
]
},
"related_cves": [
{
"value": "CVE-2022-42898",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 322016,
"published_at": "2022-12-25T06:15:09.427+00:00"
}