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CVE-2023-26464

Apache Log4j 1.x (EOL) allows DoS in Chainsaw and SocketAppender

Published: Mar 10, 2023Updated: Feb 13, 2025 Sources: CVE List NVD GHSA BDUCWE-502
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.9%
Top 23.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-502

Affected Products

Apache Log4jApache Software Foundation
Mixed
Web & CMS Plugins / cms-core
org.apache.logging.log4j:log4j-coreMavenOSS Libraries
log4j:log4jMavenOSS Libraries
log4japache
LibraryLibrary
OSS Libraries / generic-library
Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
apache software foundationoss-projectUSWeb & CMS Pluginsaka apache foundation
mavenpackage-ecosystemOSS Libraries
apacheoss-projectUSWeb & CMS Pluginsaka apache http server, apache httpd
red hat inc.commercialUSOperating Systemsaka red hat
and 20 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

3 techniques
Execution
Initial Access
View detailed technique mapping

References

https://lists.apache.org/thread/wkx6grrcjkh86crr49p4blc1v1nflj3t
lists.apache.org
https://security.netapp.com/advisory/ntap-20230505-0008/
security.netapp.com
https://nvd.nist.gov/vuln/detail/CVE-2023-26464
nvd.nist.gov
and 6 more references View all →

Timeline

Published
Mar 10, 2023
Last Updated
Feb 13, 2025

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