medium
5.9
CWE
276
EPSS
0.087%
Advisory Published
CVE Published
Updated

CVE-2024-20921

First published: Thu Jan 11 2024(Updated: )

A flaw was found in the loop optimizations performed by the Hotspot component of OpenJDK when generating range check predicates. An untrusted Java application or applet could use this flaw to corrupt JVM memory and cause it to crash or, possibly, execute arbitrary code, bypassing Java sandbox restrictions.

Credit: secalert_us@oracle.com secalert_us@oracle.com

Affected SoftwareAffected VersionHow to fix
IBM Cognos Controller<=11.0.0 - 11.0.1
debian/openjdk-11
11.0.24+8-2~deb11u1
11.0.26+4-1~deb11u1
11.0.26+4-1
debian/openjdk-17
17.0.12+7-2~deb11u1
17.0.13+11-1~deb11u1
17.0.13+11-2~deb12u1
17.0.14+7-1
debian/openjdk-21
21.0.6+7-1
debian/openjdk-8
8u432-b06-2

Remedy

https://github.com/openjdk/jdk8u/commit/f7cb28de01117f598ecf48ad58e277c3a4590436

Remedy

https://github.com/openjdk/jdk11u/commit/e059fc7575a8c450a5ed227651a00ebc355e3a46

Remedy

https://github.com/openjdk/jdk17u/commit/c5723c0948c902491f52a4ec9bb57c3f93552a0c

Remedy

https://github.com/openjdk/jdk21u/commit/10ccbebc8f60553325179d11267370e0028cbfa4

Remedy

https://github.com/openjdk/jdk22/commit/7fc13bb5371ef9e58383e7e2e6a73c1a181020dc

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2024-20921?

    CVE-2024-20921 is classified as a high-severity vulnerability due to its potential to allow arbitrary code execution.

  • How do I fix CVE-2024-20921?

    To fix CVE-2024-20921, upgrade to the latest versions of OpenJDK or affected IBM Cognos Controller as specified in the vendor's advisory.

  • Which versions of OpenJDK are affected by CVE-2024-20921?

    CVE-2024-20921 affects OpenJDK versions 8, 11, 17, and 21 prior to the specified remedied versions.

  • What are the potential consequences of exploiting CVE-2024-20921?

    Exploitation of CVE-2024-20921 can lead to corruption of JVM memory, application crashes, or the execution of arbitrary code.

  • Is IBM Cognos Controller vulnerable to CVE-2024-20921?

    Yes, IBM Cognos Controller versions 11.0.0 to 11.0.1 are vulnerable to CVE-2024-20921 and should be upgraded.

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