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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
410

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

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

0.007 Low

EPSS

Percentile

80.3%

JSON

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

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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

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

0.007 Low

EPSS

Percentile

80.3%

JSON
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