Reachable Assertion in crypto - CVE-2020-9283

 

Reachable Assertion in crypto - CVE-2020-9283

Published: November 21, 2022


Vulnerability identifier: #VU69447
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-9283
CWE-ID: CWE-617
Exploitation vector: Remote access
Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion during signature verification process. A remote attacker can supply a specially crafted certificate to the application (server or client) and perform a denial of service (DoS) attack.



Affected software

crypto
Arch Linux
golang-golang-x-crypto
cri-o (Red Hat package)
machine-config-daemon (Red Hat package)
openshift-clients (Red Hat package)
kernel (Red Hat package)
kernel-rt (Red Hat package)
redhat-release-coreos (Red Hat package)
Storage Defender – Data Protect
IBM Watson Machine Learning Accelerator
IBM Cloud Pak for Watson AIOps
Red Hat OpenShift Container Platform
IBM CICS TX Advanced
IBM CICS TX Standard

How to mitigate CVE-2020-9283

Install updates from vendor's website.

crypto - update to 0.0.0-20200220183623-bac4c82f6975
golang-golang-x-crypto - update to 0.0.20200303-1
Storage Defender – Data Protect - update to 1.3.0
cri-o (Red Hat package) - addressed in versions 1.16.6-18.rhaos4.3.git538d861.el7, 1.16.6-18.rhaos4.3.git538d861.el8
IBM Watson Machine Learning Accelerator - update to 2.3.9
IBM Cloud Pak for Watson AIOps - update to 4.1
machine-config-daemon (Red Hat package) - update to 4.3.30-202007230708.p0.git.2188.9f34d7f.el8
Red Hat OpenShift Container Platform - addressed in versions 4.3.31, 4.3.40, 4.5.5
openshift-clients (Red Hat package) - addressed in versions 4.3.31-202007250052.p0.git.3329.59998b9.el7, 4.3.31-202007250052.p0.git.3329.59998b9.el8
kernel (Red Hat package) - update to 4.18.0-193.13.2.el8_2
kernel-rt (Red Hat package) - update to 4.18.0-193.13.2.rt13.65.el8_2
IBM CICS TX Advanced - update to 11.1.0.0 ifix5
IBM CICS TX Standard - update to 11.1.0.0 ifix5
redhat-release-coreos (Red Hat package) - update to 43.82-6.el8

Links to Public Exploits and PoC-codes

External References

Related Security Bulletins