Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2021.1981
nettle security update
8 June 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: nettle
Publisher: Red Hat
Operating System: Red Hat
Impact/Access: Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Reduced Security -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-20305
Reference: ESB-2021.1820
ESB-2021.1757
ESB-2021.1464
Original Bulletin:
https://access.redhat.com/errata/RHSA-2021:2280
- --------------------------BEGIN INCLUDED TEXT--------------------
- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
=====================================================================
Red Hat Security Advisory
Synopsis: Important: nettle security update
Advisory ID: RHSA-2021:2280-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2280
Issue date: 2021-06-07
CVE Names: CVE-2021-20305
=====================================================================
1. Summary:
An update for nettle is now available for Red Hat Enterprise Linux 7.7
Extended 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.
2. Relevant releases/architectures:
Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) - x86_64
Red Hat Enterprise Linux Server EUS (v. 7.7) - ppc64, ppc64le, s390x, x86_64
3. 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.
4. 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
5. Bugs fixed (https://bugzilla.redhat.com/):
1942533 - CVE-2021-20305 nettle: Out of bounds memory access in signature verification
6. Package List:
Red Hat Enterprise Linux ComputeNode EUS (v. 7.7):
Source:
nettle-2.7.1-9.el7_7.src.rpm
x86_64:
nettle-2.7.1-9.el7_7.i686.rpm
nettle-2.7.1-9.el7_7.x86_64.rpm
nettle-debuginfo-2.7.1-9.el7_7.i686.rpm
nettle-debuginfo-2.7.1-9.el7_7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7):
x86_64:
nettle-debuginfo-2.7.1-9.el7_7.i686.rpm
nettle-debuginfo-2.7.1-9.el7_7.x86_64.rpm
nettle-devel-2.7.1-9.el7_7.i686.rpm
nettle-devel-2.7.1-9.el7_7.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 7.7):
Source:
nettle-2.7.1-9.el7_7.src.rpm
ppc64:
nettle-2.7.1-9.el7_7.ppc.rpm
nettle-2.7.1-9.el7_7.ppc64.rpm
nettle-debuginfo-2.7.1-9.el7_7.ppc.rpm
nettle-debuginfo-2.7.1-9.el7_7.ppc64.rpm
nettle-devel-2.7.1-9.el7_7.ppc.rpm
nettle-devel-2.7.1-9.el7_7.ppc64.rpm
ppc64le:
nettle-2.7.1-9.el7_7.ppc64le.rpm
nettle-debuginfo-2.7.1-9.el7_7.ppc64le.rpm
nettle-devel-2.7.1-9.el7_7.ppc64le.rpm
s390x:
nettle-2.7.1-9.el7_7.s390.rpm
nettle-2.7.1-9.el7_7.s390x.rpm
nettle-debuginfo-2.7.1-9.el7_7.s390.rpm
nettle-debuginfo-2.7.1-9.el7_7.s390x.rpm
nettle-devel-2.7.1-9.el7_7.s390.rpm
nettle-devel-2.7.1-9.el7_7.s390x.rpm
x86_64:
nettle-2.7.1-9.el7_7.i686.rpm
nettle-2.7.1-9.el7_7.x86_64.rpm
nettle-debuginfo-2.7.1-9.el7_7.i686.rpm
nettle-debuginfo-2.7.1-9.el7_7.x86_64.rpm
nettle-devel-2.7.1-9.el7_7.i686.rpm
nettle-devel-2.7.1-9.el7_7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2021-20305
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2021 Red Hat, Inc.
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=rIWK
- -----END PGP SIGNATURE-----
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
iQIVAwUBYL7QKuNLKJtyKPYoAQgZTRAArodzm9PxExebvnZLQ/jg2UGcl0TCuGmU
ziv0a7/W3FZsW5cv6kE5IXqw0ks0oICDAxw9WGyB5nFr2YNP9maY2FaGFfFV1RJ0
1FCmnnIxhmDD6ugwP1inHG/097PqoOBFfFrFeUHUhHNCpgDvoQd/jHieg6riW0zN
c9uUDYaA6icuWcryX+mC0eZRHcOUcQtOfzRhq2xbRRUe9tsqTeVqj3hYN7GSmG5r
TtSx0wiwx704NcRhI2a1Cd+N1Em0pTS0/Eudxm83VodNfOsjILxG1jodqWOC47BW
IRt22i4NACzxFcN1ukBTEs34UQgXMfSedIgYZ2lJ9p6RqR6si8jdYdM3biwLgfz5
t4Pl1ZtNYxGYGZAOPstsW8goantBF9umha6Nq1Yt3bGW+j2hDbJVNEp80jdzypnA
+PPiTLwDqEH2Wt4S99EcIJPas85wqOGZlDvx9+EgF22MPQvEsBNBIuPwg6oDv6kI
j4dXnmrcY57EJqR1XisyJXP+1xZTKZ2yZcDtNeK5ynSqOJjMcHc9KTllD97ttLMO
av3l9vnvohJuXbV8566sSt8ndnMTwlid1PYdx3RWhxLvfN7qdeAKc8+BP7ABqIUW
sR2mJ70pJ1yPBSTIn/noTdegMrjr7AyryOVTuatJ9PdeJyMb/XJhadc83c2jQmw7
DoJyMv54dF4=
=Dljl
-----END PGP SIGNATURE-----