CVE-2023-26464

Aliases:GHSA-vp98-w2p3-mv35
Advisory lineage Upstream: 0 Downstream: 7
Modified
Published: 10 Mar 2023, 13:38
Last modified:13 Feb 2025, 16:44

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
v3.1 (cve.org)
EPSS Score
0.13% LOW
0% probability +0.01%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

10 Mar 2023, 13:38
Published
Vulnerability first disclosed
13 Feb 2025, 16:44
Last Modified
Vulnerability information updated

Description

** UNSUPPORTED WHEN ASSIGNED ** When using the Chainsaw or SocketAppender components with Log4j 1.x on JRE less than 1.7, an attacker that manages to cause a logging entry involving a specially-crafted (ie, deeply nested) hashmap or hashtable (depending on which logging component is in use) to be processed could exhaust the available memory in the virtual machine and achieve Denial of Service when the object is deserialized. This issue affects Apache Log4j before 2. Affected users are recommended to update to Log4j 2.x. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.13%• Percentile: 31%

Techniques & Countermeasures

  • CWE-502•Deserialization of Untrusted Data

    The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Systems

  • apache software foundation•apache log4j

    ≥ 1.0.4, < 2

  • apache•log4j

    ≥ 1.0.4, < 2.0

  • log4j•log4j

    ≥ 1.0.4, < 2.0

  • org.apache.logging.log4j•log4j-core

    ≥ 1.0.4, < 2.0

References (5)