A go1.16 security update has been released for openSUSE Leap 15.3.

openSUSE-SU-2021:2186-1: important: Security update for go1.16

openSUSE Security Update: Security update for go1.16
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Announcement ID: openSUSE-SU-2021:2186-1
Rating: important
References: #1182345 #1186622 #1187443 #1187444 #1187445

Cross-References: CVE-2021-33195 CVE-2021-33196 CVE-2021-33197
CVE-2021-33198
CVSS scores:
CVE-2021-33195 (SUSE): 6.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:N
CVE-2021-33196 (SUSE): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE-2021-33197 (SUSE): 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
CVE-2021-33198 (SUSE): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products:
openSUSE Leap 15.3
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An update that solves four vulnerabilities and has one
errata is now available.

Description:

This update for go1.16 fixes the following issues:

Update to 1.16.5.

Includes these security fixes

- CVE-2021-33195: net: Lookup functions may return invalid host names
(bsc#1187443).
- CVE-2021-33196: archive/zip: malformed archive may cause panic or memory
exhaustion (bsc#1186622).
- CVE-2021-33197: net/http/httputil: ReverseProxy forwards Connection
headers if first one is empty (bsc#1187444)
- CVE-2021-33198: math/big: (*Rat).SetString with
"1.770p02041010010011001001" crashes with "makeslice: len out of range"
(bsc#1187445).

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods
like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

- openSUSE Leap 15.3:

zypper in -t patch openSUSE-SLE-15.3-2021-2186=1


Package List:

- openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64):

go1.16-1.16.5-1.17.1
go1.16-doc-1.16.5-1.17.1

- openSUSE Leap 15.3 (aarch64 x86_64):

go1.16-race-1.16.5-1.17.1

References:

  https://www.suse.com/security/cve/CVE-2021-33195.html
  https://www.suse.com/security/cve/CVE-2021-33196.html
  https://www.suse.com/security/cve/CVE-2021-33197.html
  https://www.suse.com/security/cve/CVE-2021-33198.html
  https://bugzilla.suse.com/1182345
  https://bugzilla.suse.com/1186622
  https://bugzilla.suse.com/1187443
  https://bugzilla.suse.com/1187444
  https://bugzilla.suse.com/1187445