DEBIAN-CVE-2026-42483
A heap-based buffer overflow in the Kerberos hash parser in hashcat v7.1.2 allows an attacker to cause a denial of service or possibly execute arbitrary code via a crafted Kerberos hash file. The issue affects module_hash_decode in multiple Kerberos-related modules because account_info_len is calculated from untrusted delimiter positions without upper-bound validation before memcpy copies the data into a fixed-size account_info buffer.
DEBIAN-CVE-2026-42483
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-42483
hashcat
Source reference: /affected/0/package/name
- Affected versions
- 6.2.6+ds1-1
Source reference:
/affected/0/versions6.2.6+ds2-1Source reference:
/affected/0/versions7.1.2+ds1-1Source reference:
/affected/0/versions7.1.2+ds1-2Source reference:
/affected/0/versions7.1.2+ds1-3Source reference:
/affected/0/versions7.1.2+ds1-4Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
hashcat
Source reference: /affected/1/package/name
- Affected versions
- 6.2.6+ds2-1
Source reference:
/affected/1/versions7.1.2+ds1-1Source reference:
/affected/1/versions7.1.2+ds1-2Source reference:
/affected/1/versions7.1.2+ds1-3Source reference:
/affected/1/versions7.1.2+ds1-4Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
hashcat
Source reference: /affected/2/package/name
- Affected versions
- 6.2.6+ds2-1
Source reference:
/affected/2/versions7.1.2+ds1-1Source reference:
/affected/2/versions7.1.2+ds1-2Source reference:
/affected/2/versions7.1.2+ds1-3Source reference:
/affected/2/versions7.1.2+ds1-4Source reference:
/affected/2/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "hashcat",
"purl": "pkg:deb/debian/hashcat?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"6.2.6+ds1-1",
"6.2.6+ds2-1",
"7.1.2+ds1-1",
"7.1.2+ds1-2",
"7.1.2+ds1-3",
"7.1.2+ds1-4"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42483.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "hashcat",
"purl": "pkg:deb/debian/hashcat?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"6.2.6+ds2-1",
"7.1.2+ds1-1",
"7.1.2+ds1-2",
"7.1.2+ds1-3",
"7.1.2+ds1-4"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42483.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "hashcat",
"purl": "pkg:deb/debian/hashcat?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"6.2.6+ds2-1",
"7.1.2+ds1-1",
"7.1.2+ds1-2",
"7.1.2+ds1-3",
"7.1.2+ds1-4"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42483.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #56472 · Revision 1
- Added to Heist Feed
- Publisher date