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» GHSA-8wpj-v5qv-3wf4
Description
In MIT Kerberos 5 (aka krb5) before 1.21.3, an attacker can cause invalid memory reads during GSS message token handling by sending message tokens with invalid length fields.
Basic information
Type
unreviewed
Severity
critical Advisory on GitHub
Open advisory ↗ Repository advisory
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Source code
Not specified Published (advisory)
2024-06-29 06:31:40 UTC
Updated
2026-05-12 12:31:57 UTC
NVD published
2024-06-28
EPSS Score
Score
Percentile
2.61%
85.53%
CVSS Scores
Base score
Version
Severity
Vector
9.1
3.1
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CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
CWEs
CWE id
Name
CWE-125
Out-of-bounds Read
cvelogic
Threat Intelligence