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gentooGentoo FoundationGLSA-202007-49
HistoryJul 27, 2020 - 12:00 a.m.

Mozilla Network Security Service (NSS): Information disclosure

2020-07-2700:00:00
Gentoo Foundation
security.gentoo.org
30

1.2 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

4.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

27.5%

Background

The Mozilla Network Security Service (NSS) is a library implementing security features like SSL v.2/v.3, TLS, PKCS #5, PKCS #7, PKCS #11, PKCS #12, S/MIME and X.509 certificates.

Description

NSS was found to not always perform constant-time operations when working with DSA key material.

Impact

An attacker may be able to obtain information about a DSA private key.

Workaround

There is no known workaround at this time.

Resolution

All NSS users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=dev-libs/nss-3.52.1"
OSVersionArchitecturePackageVersionFilename
Gentooanyalldev-libs/nss< 3.52.1UNKNOWN

1.2 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

4.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

27.5%