01 Record

CVE-2021-34558

The crypto/tls package of Go through 1.16.5 does not properly assert that the type of public key in an X.509 certificate matches the expected type when doing a RSA based key exchange, allowing a

UnratedPUBLISHEDCNA: mitre

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

The crypto/tls package of Go through 1.16.5 does not properly assert that the type of public key in an X.509 certificate matches the expected type when doing a RSA based key exchange, allowing a

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 6.97% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 94.0% of scored records. A rank, not a probability.
NVD base score: 6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2021-07-15 13:47Z5 YR AGO

Last updated

2024-08-04 00:12Z2 YR AGO

Reserved

2021-06-10

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-295Improper Certificate ValidationBase
CWE-20Improper Input ValidationClass

Data version

5.1

Document digest

151f4b3965869a7d9e2c4d9414404f99c766ebbeda8d07da6258e3c08c714f61

05 Affected products

VendorProductVersionsPlatforms

fedoraprojectfedoraNot specified—

golanggoNot specified—

netappcloud_insights_telegrafNot specified—

netappstoragegridNot specified—

netapptridentNot specified—

oracletimesten_in-memory_databaseNot specified—

redhatacmNot specified—

redhatadvanced_cluster_securityNot specified—

redhatassisted_installerNot specified—

redhatceph_storageNot specified—

redhatcontainer_native_virtualizationNot specified—

redhatdevtoolsNot specified—

redhatenterprise_linuxNot specified—

redhatjaegerNot specified—

redhatopenshiftNot specified—

redhatopenshift_container_storageNot specified—

redhatopenshift_data_foundationNot specified—

redhatopenshift_gitopsNot specified—

redhatopenshift_pipelinesNot specified—

redhatopenshift_sandboxed_containersNot specified—

redhatopenshift_service_on_awsNot specified—

redhatopenstackNot specified—

redhatquayNot specified—

redhatrhmtNot specified—

redhatserverlessNot specified—

redhatservice_meshNot specified—

redhatstfNot specified—

redhatstorageNot specified—

06 References

groups.google.comhttps://groups.google.com/g/golang-announcex_refsource_MISC
golang.orghttps://golang.org/doc/devel/release#go1.16.minorx_refsource_MISC
lists.fedoraproject.orgFEDORA-2021-25c0011e78https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D7FRFM7WWR2JCT6NORQ7AO6B453OMI3I/vendor-advisoryx_refsource_FEDORA
lists.fedoraproject.orgFEDORA-2021-1bfb61f77chttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3BA7MFVXRBEKRTLSLYDICTYCGEMK2HZ7/vendor-advisoryx_refsource_FEDORA
lists.fedoraproject.orgFEDORA-2021-3a55403080https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JYIUSR4YP52PWG7YE7AA3DZ5OSURNFJB/vendor-advisoryx_refsource_FEDORA
lists.fedoraproject.orgFEDORA-2021-47d259d3cfhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WXJ2MVMAHOIGRH37ZSFYC4EVWLJFL2EQ/vendor-advisoryx_refsource_FEDORA
lists.fedoraproject.orgFEDORA-2021-6ac9b98f9ehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LBMLUQMN6XRKPVOI5XFFBP4XSR7RNTYR/vendor-advisoryx_refsource_FEDORA
lists.fedoraproject.orgFEDORA-2021-07e4d20196https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3XBQUFVI5TMV4KMKI7GKA223LHGPQISE/vendor-advisoryx_refsource_FEDORA
lists.fedoraproject.orgFEDORA-2021-ffa749f7f7https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6BTC3JQUASFN5U2XA4UZIGAPZQBD5JSS/vendor-advisoryx_refsource_FEDORA
lists.fedoraproject.orgFEDORA-2021-54f88bebd4https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITRXPCHUCJGXCX2CUEPKZRRTB27GG4ZB/vendor-advisoryx_refsource_FEDORA
lists.fedoraproject.orgFEDORA-2021-c35235c250https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NLOGBB7XBBRB3J5FDPW5KWHSH7IRF64W/vendor-advisoryx_refsource_FEDORA
www.oracle.comhttps://www.oracle.com/security-alerts/cpuoct2021.htmlx_refsource_MISC
groups.google.comhttps://groups.google.com/g/golang-announce/c/n9FxMelZGAQx_refsource_MISC
security.netapp.comhttps://security.netapp.com/advisory/ntap-20210813-0005/x_refsource_CONFIRM
www.oracle.comhttps://www.oracle.com/security-alerts/cpujan2022.htmlx_refsource_MISC
security.gentoo.orgGLSA-202208-02https://security.gentoo.org/glsa/202208-02vendor-advisoryx_refsource_GENTOO

07 Fixed in

AlmaLinux 8

grafana
Fixed in 7.5.9-4.el8

AlmaLinux 9

podman
Fixed in 2:4.2.0-3.el9
podman-docker
Fixed in 2:4.2.0-3.el9
podman-gvproxy
Fixed in 2:4.2.0-3.el9
podman-plugins
Fixed in 2:4.2.0-3.el9
podman-remote
Fixed in 2:4.2.0-3.el9
podman-tests
Fixed in 2:4.2.0-3.el9

Arch Linux

go
Fixed in 2:1.16.6-1

Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.

CloudLinux 8

grafana
Fixed in 7.5.9-4.el8

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

CloudLinux 9

podman
Fixed in 2:4.2.0-3.el9
podman-docker
Fixed in 2:4.2.0-3.el9
podman-gvproxy
Fixed in 2:4.2.0-3.el9
podman-plugins
Fixed in 2:4.2.0-3.el9
podman-remote
Fixed in 2:4.2.0-3.el9
podman-tests
Fixed in 2:4.2.0-3.el9

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Debian 11

golang-1.15
Fixed in 1.15.9-6

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.