Issued:
2021-07-19
Updated:
2021-07-19

RHSA-2021:2760 - Security Advisory

Synopsis

Important: nettle security update

Type/Severity

Security Advisory: Important

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

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Topic

An update for nettle is now available for Red Hat Enterprise Linux 7.3 Advanced Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

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

Security Fix(es):

  • nettle: Out of bounds memory access in signature verification (CVE-2021-20305)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

  • Red Hat Enterprise Linux Server - AUS 7.3 x86_64

Fixes

  • BZ - 1942533 - CVE-2021-20305 nettle: Out of bounds memory access in signature verification

Red Hat Enterprise Linux Server - AUS 7.3

SRPM
nettle-2.7.1-9.el7_3.src.rpm SHA-256: 16c4337d6f38de13fa2d6d665c3675145391ac798d5d3dc40c41337a3d07de5b
x86_64
nettle-2.7.1-9.el7_3.i686.rpm SHA-256: 728be3aea129c3b98b5a8b0f746d23f28fce340ae223712c0bb5da8062c38251
nettle-2.7.1-9.el7_3.x86_64.rpm SHA-256: cab9b9acea303e07889d218f06e6aea50497640e7f9953939437c9aaf15ab8c0
nettle-debuginfo-2.7.1-9.el7_3.i686.rpm SHA-256: c7f147a9d5c7c34aba918c9ddc47ffeae54b294cf31d9b97416ad82a87086544
nettle-debuginfo-2.7.1-9.el7_3.x86_64.rpm SHA-256: e1f1d9b3f6763f30ef9f6c07d1c17606405e9cc4f1ab4d68444e5aabe6796e3e
nettle-devel-2.7.1-9.el7_3.i686.rpm SHA-256: 30bfcad31997ad4a7fa6554ac5d007c72b09bcfe0565e841b73cd856475f48fc
nettle-devel-2.7.1-9.el7_3.x86_64.rpm SHA-256: 2ac7491de39dea26647388cacb0e9a5c3959df12a2bb0b19c8ec5d4deb7c9230

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.