Bug 2464362 (CVE-2026-42483) - CVE-2026-42483 hashcat: heap-based buffer overflow in Kerberos hash parsers
Summary: CVE-2026-42483 hashcat: heap-based buffer overflow in Kerberos hash parsers
Keywords:
Status: NEW
Alias: CVE-2026-42483
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2467781
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-01 15:02 UTC by OSIDB Bzimport
Modified: 2026-05-07 17:59 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2026-05-01 15:02:22 UTC
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.


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