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Red Hat Security Advisory

Synopsis: Moderate: go-toolset:rhel8 security update
Advisory ID: RHSA-2020:5493-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:5493
Issue date: 2020-12-15
CVE Names: CVE-2020-24553 CVE-2020-28362 CVE-2020-28366
CVE-2020-28367
=====================================================================

1. Summary:

An update for the go-toolset:rhel8 module 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 AppStream (v. 8) – aarch64, noarch, ppc64le, s390x, x86_64

3. Description:

Go Toolset provides the Go programming language tools and libraries. Go is
alternatively known as golang.

Security Fix(es):

* golang: default Content-Type setting in net/http/cgi and net/http/fcgi
could cause XSS (CVE-2020-24553)

* golang: math/big: panic during recursive division of very large numbers
(CVE-2020-28362)

* golang: malicious symbol names can lead to code execution at build time
(CVE-2020-28366)

* golang: improper validation of cgo flags can lead to code execution at
build time (CVE-2020-28367)

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/):

1874857 – CVE-2020-24553 golang: default Content-Type setting in net/http/cgi and net/http/fcgi could cause XSS
1897635 – CVE-2020-28362 golang: math/big: panic during recursive division of very large numbers
1897643 – CVE-2020-28366 golang: malicious symbol names can lead to code execution at build time
1897646 – CVE-2020-28367 golang: improper validation of cgo flags can lead to code execution at build time

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
delve-1.4.1-1.module+el8.3.0+7840+63dfb1ed.src.rpm
go-toolset-1.14.12-1.module+el8.3.0+8784+380394dc.src.rpm
golang-1.14.12-1.module+el8.3.0+8784+380394dc.src.rpm

aarch64:
go-toolset-1.14.12-1.module+el8.3.0+8784+380394dc.aarch64.rpm
golang-1.14.12-1.module+el8.3.0+8784+380394dc.aarch64.rpm
golang-bin-1.14.12-1.module+el8.3.0+8784+380394dc.aarch64.rpm

noarch:
golang-docs-1.14.12-1.module+el8.3.0+8784+380394dc.noarch.rpm
golang-misc-1.14.12-1.module+el8.3.0+8784+380394dc.noarch.rpm
golang-src-1.14.12-1.module+el8.3.0+8784+380394dc.noarch.rpm
golang-tests-1.14.12-1.module+el8.3.0+8784+380394dc.noarch.rpm

ppc64le:
go-toolset-1.14.12-1.module+el8.3.0+8784+380394dc.ppc64le.rpm
golang-1.14.12-1.module+el8.3.0+8784+380394dc.ppc64le.rpm
golang-bin-1.14.12-1.module+el8.3.0+8784+380394dc.ppc64le.rpm

s390x:
go-toolset-1.14.12-1.module+el8.3.0+8784+380394dc.s390x.rpm
golang-1.14.12-1.module+el8.3.0+8784+380394dc.s390x.rpm
golang-bin-1.14.12-1.module+el8.3.0+8784+380394dc.s390x.rpm

x86_64:
delve-1.4.1-1.module+el8.3.0+7840+63dfb1ed.x86_64.rpm
delve-debuginfo-1.4.1-1.module+el8.3.0+7840+63dfb1ed.x86_64.rpm
delve-debugsource-1.4.1-1.module+el8.3.0+7840+63dfb1ed.x86_64.rpm
go-toolset-1.14.12-1.module+el8.3.0+8784+380394dc.x86_64.rpm
golang-1.14.12-1.module+el8.3.0+8784+380394dc.x86_64.rpm
golang-bin-1.14.12-1.module+el8.3.0+8784+380394dc.x86_64.rpm
golang-race-1.14.12-1.module+el8.3.0+8784+380394dc.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-2020-24553
https://access.redhat.com/security/cve/CVE-2020-28362
https://access.redhat.com/security/cve/CVE-2020-28366
https://access.redhat.com/security/cve/CVE-2020-28367
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_developer_tools/1/html/using_go_1.14.10_toolset

8. Contact:

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

Copyright 2020 Red Hat, Inc.
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