Medium severity · published Jul 15, 2021
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…
6.5
CVSS
7%
EPSS
No
On KEV
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 malicious TLS server to cause a TLS client to panic.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)7.0% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CI
Cloud Insights Telegraf · Netapp
All versions, or not specified · source: NVD
FE
Fedora · Fedoraproject
33; 34 · source: NVD
GO
GO · Golang
before 1.15.14; 1.16.0 before 1.16.6 · source: NVD
ST
Storagegrid · Netapp
All versions, or not specified · source: NVD
TI
Timesten In-memory Database · Oracle
before 21.1.1.1.0 · source: NVD
TR
Trident · Netapp
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-34558
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-34558
Release Notes
https://golang.org/doc/devel/release#go1.16.minor
Mailing List
https://groups.google.com/g/golang-announce
Mailing List
https://groups.google.com/g/golang-announce/c/n9FxMelZGAQ
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3BA7MFVXRBEKRTLSLYDICTYCGEMK2HZ7/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3XBQUFVI5TMV4KMKI7GKA223LHGPQISE/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6BTC3JQUASFN5U2XA4UZIGAPZQBD5JSS/
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