high
8.6
CWE
129
Advisory Published
Updated

CVE-2021-3121: Out-of-bounds Read

First published: Mon Jan 11 2021(Updated: )

An issue was discovered in GoGo Protobuf before 1.3.2. plugin/unmarshal/unmarshal.go lacks certain index validation, aka the "skippy peanut butter" issue.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
redhat/kiali<0:v1.24.7.redhat1-1.el8
0:v1.24.7.redhat1-1.el8
redhat/cri-o<0:1.20.0-0.rhaos4.7.git8921e00.el8.51
0:1.20.0-0.rhaos4.7.git8921e00.el8.51
redhat/cri-tools<0:1.20.0-1.el8
0:1.20.0-1.el8
redhat/openshift-clients<0:4.7.0-202103251046.p0.git.3957.c4da68b.el7
0:4.7.0-202103251046.p0.git.3957.c4da68b.el7
redhat/openshift<0:4.8.0-202107161820.p0.git.051ac4f.assembly.stream.el8
0:4.8.0-202107161820.p0.git.051ac4f.assembly.stream.el8
redhat/openshift-clients<0:4.8.0-202106281541.p0.git.1077b05.assembly.stream.el8
0:4.8.0-202106281541.p0.git.1077b05.assembly.stream.el8
Golang Protobuf<1.3.2
HashiCorp Consul<1.8.15
HashiCorp Consul<1.8.15
HashiCorp Consul>=1.9.0<1.9.9
HashiCorp Consul>=1.9.0<1.9.9
HashiCorp Consul>=1.10.0<1.10.2
HashiCorp Consul>=1.10.0<1.10.2
redhat/github.com/gogo/protobuf<1.3.2
1.3.2

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the vulnerability ID of this issue?

    The vulnerability ID of this issue is CVE-2021-3121.

  • What is the severity of CVE-2021-3121?

    The severity of CVE-2021-3121 is high with a CVSS score of 8.6.

  • What is the affected software?

    The affected software includes github.com/gogo/protobuf versions up to 1.3.2, kiali up to v1.24.7.redhat1-1.el8, cri-o up to 1.20.0-0.rhaos4.7.git8921e00.el8.51, cri-tools up to 1.20.0-1.el8, and others.

  • How does this vulnerability occur?

    This vulnerability occurs due to an out-of-bounds access when unmarshalling certain protobuf objects in github.com/gogo/protobuf.

  • How can I fix CVE-2021-3121?

    To fix CVE-2021-3121, update your golang/protobuf package to version 1.3.2 or newer and apply any available patches or updates for the affected software.

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