Nginx 1.21 3 vulnerabilities

1. What are vulnerable versions of nginx?
2. What are the security vulnerabilities in nginx 1.18 0?
3. Is Log4j 1.2 affected by vulnerability?
4. Is Log4j 1.2 vulnerable?
5. Is NGINX affected by Log4j vulnerability?
6. Is NGINX vulnerable for Log4j?
7. Is Log4j vulnerability NGINX?
8. Is NGINX 1.20 stable?
9. Is Log4j 2.16 vulnerable?
10. Does Log4j vulnerability affected version 1?
11. Is NGINX 1.20 stable?
12. Is NGINX affected by Log4j vulnerability?
13. Is Log4j 2.16 also vulnerable?
14. Which version of Log4j is not vulnerable?
15. Is Log4j version 2.17 vulnerable?
16. Which version of Log4j is safe?

What are vulnerable versions of nginx?

NGINX Plus before versions R27 P1 and R26 P1 have a vulnerability in the module ngx_http_hls_module that might allow a local attacker to corrupt NGINX worker memory, resulting in its crash or potential other impact using a specially crafted audio or video file.

What are the security vulnerabilities in nginx 1.18 0?

A vulnerability was found in nginx up to 1.18. 0 (Web Server) and classified as critical. Affected by this issue is an unknown functionality. The manipulation as part of a HTTP Request leads to a request smuggling vulnerability.

Is Log4j 1.2 affected by vulnerability?

Included in Log4j 1.2 is a SocketServer class that is vulnerable to deserialization of untrusted data which can be exploited to remotely execute arbitrary code when combined with a deserialization gadget when listening to untrusted network traffic for log data.

Is Log4j 1.2 vulnerable?

Details of CVE-2021-4104

JMSAppender, in log4j 1.2 version, is vulnerable to deserialization of untrusted data if the attacker has the 'write' permissions to the log4j configuration.

Is NGINX affected by Log4j vulnerability?

(NGINX itself is written in C and does not use Java or any Java‑based libraries so was unaffected by the Log4j vulnerabilities…)

Is NGINX vulnerable for Log4j?

NGINX itself is not vulnerable to this exploit, because it is written in C and does not use Java or any Java‑based libraries.

Is Log4j vulnerability NGINX?

nginx is not written in Java, it does not use log4j (which can only be used in applications written in Java), it is not vulnerable.

Is NGINX 1.20 stable?

Source Releases

There are currently two versions of NGINX available: stable (1.20.x) , mainline (1.21.x) . The mainline branch gets new features and bugfixes sooner but might introduce new bugs as well. Critical bugfixes are backported to the stable branch.

Is Log4j 2.16 vulnerable?

December 20, 2021

16 and earlier. Log4j 2.16 and earlier does not always protect from infinite recursion in lookup evaluation, which can lead to DoS attacks. This is considered a High (7.5) vulnerability on the CVSS scale.

Does Log4j vulnerability affected version 1?

Log4j 1.

x are only vulnerable to this attack when they use JNDI in their configuration. A separate CVE (CVE-2021-4104) has been filed for this vulnerability. To mitigate: Audit your logging configuration to ensure it has no JMSAppender configured.

Is NGINX 1.20 stable?

Source Releases

There are currently two versions of NGINX available: stable (1.20.x) , mainline (1.21.x) . The mainline branch gets new features and bugfixes sooner but might introduce new bugs as well. Critical bugfixes are backported to the stable branch.

Is NGINX affected by Log4j vulnerability?

(NGINX itself is written in C and does not use Java or any Java‑based libraries so was unaffected by the Log4j vulnerabilities…)

Is Log4j 2.16 also vulnerable?

December 20, 2021

Log4j 2.17 has been released to address a Denial of Service (DoS) vulnerability found in v2. 16 and earlier. Log4j 2.16 and earlier does not always protect from infinite recursion in lookup evaluation, which can lead to DoS attacks. This is considered a High (7.5) vulnerability on the CVSS scale.

Which version of Log4j is not vulnerable?

The “patches” are simply updated versions of Apache Log4j 2. So if you have anything prior to version 2.17. 1, the one issued on December 28, 2021, you could still be vulnerable. Fixing the issue is simply a matter of updating Apache Log4j 2 instances to at least version 2.17.

Is Log4j version 2.17 vulnerable?

Apache Log4j2 versions 2.0-beta7 through 2.17.0 (excluding security fix releases 2.3.2 and 2.12.4) are vulnerable to a remote code execution (RCE) attack where an attacker with permission to modify the logging configuration file can construct a malicious configuration using a JDBC Appender with a data source ...

Which version of Log4j is safe?

x, the best advice us to use the most recent version. At the time of writing this (2021-03-14), https://logging.apache.org/log4j/2.x/security.html says that log4j 2.3. 2 is safe if you are running the code on a Java 6 JVM. But if you intend to run on a more recent JVM, the latest security patch is advisable.