SB2021111069 - Red Hat Enterprise Linux 8 update for the python39:3.9 and python39-devel:3.9 modules
Published: November 10, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 7 secuirty vulnerabilities.
1) Improper input validation (CVE-ID: CVE-2021-3572)
The vulnerability allows a remote authenticated user to manipulate data.
The vulnerability exists due to improper input validation within the Policy (python-pip) component in Oracle Communications Cloud Native Core Policy. A remote authenticated user can exploit this vulnerability to manipulate data.
2) Resource management error (CVE-ID: CVE-2021-3733)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper management of internal resources within the application within the AbstractBasicAuthHandler class in urllib. A remote attacker with control over the server can perform regular expression denial of service attack during authentication.
3) Improper input validation (CVE-ID: CVE-2021-3426)
The vulnerability allows a remote authenticated user to gain access to sensitive information.
The vulnerability exists due to improper input validation within the Binding Support Function (Python) component in Oracle Communications Cloud Native Core Binding Support Function. A remote authenticated user can exploit this vulnerability to gain access to sensitive information.
4) Resource exhaustion (CVE-ID: CVE-2021-33503)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation in urllib3 when processing URL with multiple "@" characters in the authority component. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
5) Infinite loop (CVE-ID: CVE-2021-3737)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop. A remote attacker who controls a malicious server can force the client to enter an infinite loop on a 100 Continue response.
6) Cross-site scripting (CVE-ID: CVE-2021-28957)
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data. When disabling the safe_attrs_only and forms arguments, the Cleaner class does not remove the formaction attribute allowing for JS to bypass the sanitizer. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
7) Improper input validation (CVE-ID: CVE-2021-29921)
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
The vulnerability exists due to improper input validation within the Python interpreter and runtime (CPython) component in Oracle GraalVM Enterprise Edition. A remote non-authenticated attacker can exploit this vulnerability to execute arbitrary code.
Remediation
Install update from vendor's website.