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Gentoo FoundationGLSA-202007-14

HistoryJul 26, 2020 - 12:00 a.m.

yaml-cpp: Denial of service

2020-07-2600:00:00

Gentoo Foundation

security.gentoo.org

yaml parser c++ scanner::peek assertion failure "denial of service" unix upgrade security vulnerability

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.003

Percentile

69.6%

JSON

Background

yaml-cpp is a YAML parser and emitter in C++.

Description

The function Scanner::peek in scanner.cpp may have an assertion failure.

Impact

An attacker could cause a possible Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All yaml-cpp users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose "&gt;=dev-cpp/yaml-cpp-0.6.3-r2"

OSVersionArchitecturePackageVersionFilename
Gentooanyalldev-cpp/yaml-cpp< 0.6.3-r2UNKNOWN

OS	Version	Architecture	Package	Version	Filename
Gentoo	any	all	dev-cpp/yaml-cpp	< 0.6.3-r2	UNKNOWN

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.003

Percentile

69.6%

JSON

Related for GLSA-202007-14