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gentooGentoo FoundationGLSA-201701-56
HistoryJan 23, 2017 - 12:00 a.m.

zlib: Multiple vulnerabilities

2017-01-2300:00:00
Gentoo Foundation
security.gentoo.org
48

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

7.5 High

CVSS2

Access Vector

NETWORK

Access 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

0.014 Low

EPSS

Percentile

86.1%

Background

zlib is a widely used free and patent unencumbered data compression library.

Description

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

Impact

An attacker could cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All zlib users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=sys-libs/zlib-1.2.9"
OSVersionArchitecturePackageVersionFilename
Gentooanyallsys-libs/zlib< 1.2.9UNKNOWN

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

7.5 High

CVSS2

Access Vector

NETWORK

Access 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

0.014 Low

EPSS

Percentile

86.1%