SB2019081308 - Red Hat update for rhvm-appliance
Published: August 13, 2019 Updated: June 24, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Input validation error (CVE-ID: CVE-2018-16881)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists in the imptcp module due to insufficient validation of user-supplied input. A remote attacker can send a specially crafted message to the imptcp socket that submits malicious input and cause the affected software to crash, resulting in a DoS condition.
2) Use of a broken or risky cryptographic algorithm (CVE-ID: CVE-2019-1559)
The vulnerability allows a remote attacker to decrypt sensitive information.
The vulnerability exists due to the way an application behaves, when it receives a 0-byte record with invalid padding compared to the record with an invalid MAC, which results in padding oracle. A remote attacker can decrypt data.
Successful exploitation of the vulnerability requires that the application is using "non-stitched" ciphersuites and calls SSL_shutdown() twice (first, via a BAD_RECORD_MAC and again via a CLOSE_NOTIFY).3) Cleartext storage of sensitive information (CVE-ID: CVE-2019-3888)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to the Connectors.executeRootHandler:402 logs the HttpServerExchange object at ERROR level using UndertowLogger.REQUEST_LOGGER.undertowRequestFailed(t, exchange), which includes logging of user credentials. A local user can view contents of log files and gain access to credentials in plain text that are stored in them.
Remediation
Install update from vendor's website.