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gentooGentoo FoundationGLSA-201606-01
HistoryJun 05, 2016 - 12:00 a.m.

PuTTY: Multiple vulnerabilities

2016-06-0500:00:00
Gentoo Foundation
security.gentoo.org
27

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

0.021 Low

EPSS

Percentile

89.3%

Background

PuTTY is a telnet and SSH client.

Description

Multiple vulnerabilities have been discovered in PuTTY. Please review the CVE identifiers referenced below for details.

Impact

Stack-based buffer overflow in the SCP command-line utility allows remote servers to execute arbitrary code or cause a denial of service condition via a crafted SCP-SINK file-size response to an SCP download request.

Workaround

There is no known workaround at this time.

Resolution

All PuTTY users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=net-misc/putty-0.67"
OSVersionArchitecturePackageVersionFilename
Gentooanyallnet-misc/putty< 0.67UNKNOWN

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

0.021 Low

EPSS

Percentile

89.3%