[ GLSA 202105-31 ] Nettle

[GLSA]

Gentoo Linux Security Advisory

Title: Nettle: Denial of service (GLSA 202105-31)
Severity: low
Exploitable: local, remote
Date: 2021-05-26
Bug(s): #780483
ID: 202105-31

Synopsis

A vulnerability in Nettle could lead to a Denial of Service
condition.


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.


Affected Packages

Package: dev-libs/nettle
Vulnerable: < 3.7.2
Unaffected: >= 3.7.2
Architectures: All supported architectures


Description

It was discovered that Nettle incorrectly handled signature
verification.


Impact

A remote attacker could send a specially crafted valid-looking input
signature, possibly resulting in a Denial of Service condition or force
an invalid signature.


Workaround

There is no known workaround at this time.

Resolution

All Nettle users should upgrade to the latest version: