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CVE-2016-7115

Published: 30 August 2016

Buffer overflow in the handle_packet function in mactelnet.c in the client in MAC-Telnet 0.4.3 and earlier allows remote TELNET servers to execute arbitrary code via a long string in an MT_CPTYPE_PASSSALT control packet.

From the Ubuntu Security Team

It was discovered that mactelnet mishandled certain input. If a victim were tricked into connecting to a malicious telnet server, a remote, unauthenticated attacker could execute arbitrary code.

Priority

Low

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
mactelnet
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic Not vulnerable
(0.4.4-4)
cosmic Not vulnerable
(0.4.4-4)
disco Not vulnerable
(0.4.4-4)
eoan Not vulnerable
(0.4.4-4)
focal Not vulnerable
(0.4.4-4)
groovy Not vulnerable
(0.4.4-4)
hirsute Not vulnerable
(0.4.4-4)
impish Not vulnerable
(0.4.4-4)
jammy Not vulnerable
(0.4.4-4)
kinetic Not vulnerable
(0.4.4-4)
lunar Not vulnerable
(0.4.4-4)
mantic Not vulnerable
(0.4.4-4)
precise
Released (0.3.4-1+deb7u1build0.12.04.1)
trusty
Released (0.4.0-1+deb8u1build0.14.04.1)
upstream
Released (4.0-1+deb8u1, 4.4-4)
xenial Needed

yakkety Ignored
(end of life)
zesty Ignored
(end of life)
Patches:
upstream: https://github.com/haakonnessjoen/MAC-Telnet/commit/b69d11727d4f0f8cf719c79e3fb700f55ca03e9a

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H