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gentooGentoo FoundationGLSA-201805-10
HistoryMay 26, 2018 - 12:00 a.m.

Zsh: Multiple vulnerabilities

2018-05-2600:00:00
Gentoo Foundation
security.gentoo.org
416

CVSS2

7.5

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.007

Percentile

80.6%

Background

A shell designed for interactive use, although it is also a powerful scripting language.

Description

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

Impact

A local attacker could execute arbitrary code, escalate privileges, or cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All Zsh users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-shells/zsh-5.5"
OSVersionArchitecturePackageVersionFilename
Gentooanyallapp-shells/zsh< 5.5UNKNOWN

CVSS2

7.5

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.007

Percentile

80.6%