samba -- buffer overflow in Heimdal unwrap_des3()

2022-08-0200:00:00

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6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:N/I:N/A:P

0.01 Low

EPSS

Percentile

83.4%

JSON

The Samba Team reports:

The DES (for Samba 4.11 and earlier) and Triple-DES decryption
routines in the Heimdal GSSAPI library allow a length-limited write
buffer overflow on malloc() allocated memory when presented with a
maliciously small packet.

OSVersionArchitecturePackageVersionFilename
FreeBSDanynoarchsamba412< 4.12.16UNKNOWN
FreeBSDanynoarchsamba413< 4.13.17_4UNKNOWN
FreeBSDanynoarchsamba416< 4.16.6UNKNOWN