Lucene search

K
gentooGentoo FoundationGLSA-202401-24
HistoryJan 16, 2024 - 12:00 a.m.

Nettle: Denial of Service

2024-01-1600:00:00
Gentoo Foundation
security.gentoo.org
8
nettle
cryptographic library
denial of service
rsa decryption
manipulated ciphertext
application crash
vulnerability
upgrade
emerge
unix

5 Medium

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

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

8.4 High

AI Score

Confidence

High

0.011 Low

EPSS

Percentile

84.2%

Background

Nettle is a cryptographic library that is designed to fit easily in almost any context: In cryptographic toolkits for object-oriented languages, such as C++, Python, or Pike, in applications like lsh or GnuPG, or even in kernel space.

Description

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

Impact

A flaw was found in the way nettle’s RSA decryption functions handled specially crafted ciphertext. An attacker could use this flaw to provide a manipulated ciphertext leading to application crash and denial of service.

Workaround

There is no known workaround at this time.

Resolution

All Nettle users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=dev-libs/nettle-3.9.1"
OSVersionArchitecturePackageVersionFilename
Gentooanyalldev-libs/nettle< 3.9.1UNKNOWN

5 Medium

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

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

8.4 High

AI Score

Confidence

High

0.011 Low

EPSS

Percentile

84.2%