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Deserialization of Untrusted Data Affecting apache-log4j2 package, versions <2.7-2

Severity

 Recommended
0.0
critical
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    Exploit Maturity
    Proof of concept
    EPSS
    87.38% (99th percentile)

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  • Snyk ID SNYK-DEBIANUNSTABLE-APACHELOG4J2-291833
  • published 17 Apr 2017
  • disclosed 17 Apr 2017
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Introduced: 17 Apr 2017

CVE-2017-5645 Open this link in a new tab
CWE-502 Open this link in a new tab

How to fix?

Upgrade Debian:unstable apache-log4j2 to version 2.7-2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream apache-log4j2 package and not the apache-log4j2 package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

In Apache Log4j 2.x before 2.8.2, when using the TCP socket server or UDP socket server to receive serialized log events from another application, a specially crafted binary payload can be sent that, when deserialized, can execute arbitrary code.

References

CVSS Scores

version 3.1
Expand this section

NVD

Recommended
9.8 critical
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High