Apache Commons BCEL prior to 6.6.0 allows producing arbitrary bytecode via out-of-bounds writing
CVE-2022-42920

9.8CRITICAL

Key Information:

Vendor

Apache
Status
Apache Commons Bcel
Vendor
CVE Published:
7 November 2022

What is CVE-2022-42920?

Apache Commons BCEL has a number of APIs that would normally only allow changing specific class characteristics. However, due to an out-of-bounds writing issue, these APIs can be used to produce arbitrary bytecode. This could be abused in applications that pass attacker-controllable data to those APIs, giving the attacker more control over the resulting bytecode than otherwise expected. Update to Apache Commons BCEL 6.6.0.

Affected Version(s)

Apache Commons BCEL Apache Commons BCEL < 6.6.0

References

https://lists.apache.org/thread/lfxk7q8qmnh5bt9jm6nmjlv5h...
http://www.openwall.com/lists/oss-security/2022/11/07/2
mailing-list
https://lists.fedoraproject.org/archives/list/package-ann...
vendor-advisory

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Reported by Felix Wilhelm (Google); GitHub pull request to Apache Commons BCEL #147 by Richard Atkins (https://github.com/rjatkins); PR derived from OpenJDK (https://github.com/openjdk/jdk11u/) commit 13bf52c8d876528a43be7cb77a1f452d29a21492 by Aleksei Voitylov and RealCLanger (Christoph Langer https://github.com/RealCLanger)
.