SB2021053006 - Multiple vulnerabilities in Red Hat OpenShift GitOps
Published: May 30, 2021
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) Allocation of Resources Without Limits or Throttling (CVE-ID: CVE-2020-25648)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
A flaw was found in the way NSS handled CCS (ChangeCipherSpec) messages in TLS 1.3. This flaw allows a remote attacker to send multiple CCS messages, causing a denial of service for servers compiled with the NSS library. The highest threat from this vulnerability is to system availability. This flaw affects NSS versions before 3.58.
4) NULL pointer dereference (CVE-ID: CVE-2020-25692)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in slapd normalization handling with modrdn. A remote non-authenticated attacker can send specially crafted packet to the slapd daemon and perform a denial of service (DoS) attack.
5) Input validation error (CVE-ID: CVE-2020-28362)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in a number of math/big.Int methods (Div, Exp, DivMod, Quo, Rem, QuoRem, Mod, ModInverse, ModSqrt, Jacobi, and GCD). A remote attacker can pass large input data to the application, specifically as divisor or modulo argument larger than 3168 bits (on 32-bit architectures) or 6336 bits (on 64-bit architectures).
6) Incorrect calculation (CVE-ID: CVE-2021-3114)
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to incorrect calculation performed by the application in "crypto/elliptic/p224.go". A remote attacker can generate incorrect outputs, related to an underflow of the lowest limb during the final complete reduction in the P-224 field.
7) Use of a broken or risky cryptographic algorithm (CVE-ID: CVE-2021-20305)
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
A flaw was found in Nettle in versions before 3.7.2, where several Nettle signature verification functions (GOST DSA, EDDSA & ECDSA) result in the Elliptic Curve Cryptography point (ECC) multiply function being called with out-of-range scalers, possibly resulting in incorrect results. This flaw allows an attacker to force an invalid signature, causing an assertion failure or possible validation. The highest threat to this vulnerability is to confidentiality, integrity, as well as system availability.
8) Reachable Assertion (CVE-ID: CVE-2021-25215)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion when processing DNAME records. A remote attacker can force named to add the same RRset to the ANSWER section more than once, trigger an assertion failure and crash the service. Both authoritative and recursive servers are affected by this issue during zone transfers.
9) Improper Authorization (CVE-ID: CVE-2021-3557)
The vulnerability allows a remote user to gain access to sensitive information.
The vulnerability exists in the argo-cd implementation. Any unprivileged user is able to deploy argocd in their namespace and with the created ServiceAccount argocd-argocd-server, the unprivileged user is able to read all resources of the cluster including all secrets which might enable privilege escalations.
Remediation
Install update from vendor's website.