Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2021.2266
lz4 security update
30 June 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: lz4
Publisher: Red Hat
Operating System: Red Hat
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-3520
Reference: ESB-2021.1877
ESB-2021.1864
ESB-2021.1791
ESB-2021.1637
Original Bulletin:
https://access.redhat.com/errata/RHSA-2021:2575
- --------------------------BEGIN INCLUDED TEXT--------------------
- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
=====================================================================
Red Hat Security Advisory
Synopsis: Moderate: lz4 security update
Advisory ID: RHSA-2021:2575-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2575
Issue date: 2021-06-29
CVE Names: CVE-2021-3520
=====================================================================
1. Summary:
An update for lz4 is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact
of Moderate. 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 BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64
3. Description:
The lz4 packages provide support for LZ4, a very fast, lossless compression
algorithm that provides compression speeds of 400 MB/s per core and scales
with multicore CPUs. It also features an extremely fast decoder that
reaches speeds of multiple GB/s per core and typically reaches RAM speed
limits on multicore systems.
Security Fix(es):
* lz4: memory corruption due to an integer overflow bug caused by memmove
argument (CVE-2021-3520)
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/):
1954559 - CVE-2021-3520 lz4: memory corruption due to an integer overflow bug caused by memmove argument
6. Package List:
Red Hat Enterprise Linux BaseOS (v. 8):
Source:
lz4-1.8.3-3.el8_4.src.rpm
aarch64:
lz4-1.8.3-3.el8_4.aarch64.rpm
lz4-debuginfo-1.8.3-3.el8_4.aarch64.rpm
lz4-debugsource-1.8.3-3.el8_4.aarch64.rpm
lz4-devel-1.8.3-3.el8_4.aarch64.rpm
lz4-libs-1.8.3-3.el8_4.aarch64.rpm
lz4-libs-debuginfo-1.8.3-3.el8_4.aarch64.rpm
ppc64le:
lz4-1.8.3-3.el8_4.ppc64le.rpm
lz4-debuginfo-1.8.3-3.el8_4.ppc64le.rpm
lz4-debugsource-1.8.3-3.el8_4.ppc64le.rpm
lz4-devel-1.8.3-3.el8_4.ppc64le.rpm
lz4-libs-1.8.3-3.el8_4.ppc64le.rpm
lz4-libs-debuginfo-1.8.3-3.el8_4.ppc64le.rpm
s390x:
lz4-1.8.3-3.el8_4.s390x.rpm
lz4-debuginfo-1.8.3-3.el8_4.s390x.rpm
lz4-debugsource-1.8.3-3.el8_4.s390x.rpm
lz4-devel-1.8.3-3.el8_4.s390x.rpm
lz4-libs-1.8.3-3.el8_4.s390x.rpm
lz4-libs-debuginfo-1.8.3-3.el8_4.s390x.rpm
x86_64:
lz4-1.8.3-3.el8_4.x86_64.rpm
lz4-debuginfo-1.8.3-3.el8_4.i686.rpm
lz4-debuginfo-1.8.3-3.el8_4.x86_64.rpm
lz4-debugsource-1.8.3-3.el8_4.i686.rpm
lz4-debugsource-1.8.3-3.el8_4.x86_64.rpm
lz4-devel-1.8.3-3.el8_4.i686.rpm
lz4-devel-1.8.3-3.el8_4.x86_64.rpm
lz4-libs-1.8.3-3.el8_4.i686.rpm
lz4-libs-1.8.3-3.el8_4.x86_64.rpm
lz4-libs-debuginfo-1.8.3-3.el8_4.i686.rpm
lz4-libs-debuginfo-1.8.3-3.el8_4.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-2021-3520
https://access.redhat.com/security/updates/classification/#moderate
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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=LkEJ
- -----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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=P1ap
-----END PGP SIGNATURE-----