SB2020100615 - Multiple vulnerabilities in OpenShift Virtualization 2.4
Published: October 6, 2020 Updated: April 24, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 9 secuirty vulnerabilities.
1) Race condition (CVE-ID: CVE-2020-15586)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a race condition in some net/http servers, as demonstrated by the httputil.ReverseProxy Handler. A remote attacker can exploit the race and cause a denial of service condition on the target system.
2) Infinite loop (CVE-ID: CVE-2020-16845)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop in "ReadUvarint" and "ReadVarint" in "encoding/binary". A remote attacker can consume all available system resources and cause denial of service conditions.
3) Use-after-free (CVE-ID: CVE-2019-11756)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when processing SFTKSession object. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger a use-after-free error and crash the application or execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
4) Heap-based buffer overflow (CVE-ID: CVE-2019-17006)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Mozilla NSS library when processing input text length while using certain cryptographic primitives. A remote attacker can pass specially crafted data to the application, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
5) Algorithm Downgrade (CVE-ID: CVE-2019-17023)
The vulnerability allows a remote attacker to bypass certain security restrictions.
The vulnerability exists due to insecure negotiation After a HelloRetryRequest in Mozilla NSS that can lead to selection of a less secure protocol (e.g. TLS 1.2 or below) after the HelloRetryRequest TLS 1.3 is sent.
6) Cryptographic issues (CVE-ID: CVE-2020-12402)
The vulnerability allows a remote attacker to recover the secret primes.
During RSA key generation, bignum implementations used a variation of the Binary Extended Euclidean Algorithm which entailed significantly input-dependent flow. This allowed an attacker able to perform electromagnetic-based side channel attacks to record traces leading to the recovery of the secret primes.
7) Resource exhaustion (CVE-ID: CVE-2020-12825)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources caused by excessive recursion in cr_parser_parse_any_core in cr-parser.c. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
8) Path traversal (CVE-ID: CVE-2020-14352)
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences in remote repository metadata. A remote attacker with control over the repository can trick the victim into downloading software and copy files outside of the destination directory on the targeted system. Successful exploitation of the vulnerability may result in system compromise.
9) Improper Verification of Cryptographic Signature (CVE-ID: CVE-2020-14365)
The vulnerability allows a local authenticated user to #BASIC_IMPACT#.
A flaw was found in the Ansible Engine, in ansible-engine 2.8.x before 2.8.15 and ansible-engine 2.9.x before 2.9.13, when installing packages using the dnf module. GPG signatures are ignored during installation even when disable_gpg_check is set to False, which is the default behavior. This flaw leads to malicious packages being installed on the system and arbitrary code executed via package installation scripts. The highest threat from this vulnerability is to integrity and system availability.
Remediation
Install update from vendor's website.