CVE-2021-45105

Source
https://cve.org/CVERecord?id=CVE-2021-45105
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-45105.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-45105
Aliases
Downstream
Related
Published
2021-12-18T12:15:07.433Z
Modified
2026-03-15T22:42:45.536461Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

Apache Log4j2 versions 2.0-alpha1 through 2.16.0 (excluding 2.12.3 and 2.3.1) did not protect from uncontrolled recursion from self-referential lookups. This allows an attacker with control over Thread Context Map data to cause a denial of service when a crafted string is interpreted. This issue was fixed in Log4j 2.17.0, 2.12.3, and 2.3.1.

References

Affected packages

Git / github.com/apache/logging-log4j2

Affected ranges

Type
GIT
Repo
https://github.com/apache/logging-log4j2
Events
Introduced
Fixed
Introduced
Fixed
Introduced
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Database specific
{
    "versions": [
        {
            "introduced": "2.0"
        },
        {
            "fixed": "2.3.1"
        },
        {
            "introduced": "2.4"
        },
        {
            "fixed": "2.12.3"
        },
        {
            "introduced": "2.13.0"
        },
        {
            "last_affected": "2.16.0"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.12.0"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.12.0"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.12.0"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.6.2"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.12.0"
        }
    ]
}

Affected versions

log4j-2.*
log4j-2.10-rc1
log4j-2.10.0
log4j-2.11.0
log4j-2.11.0-rc1
log4j-2.11.1
log4j-2.11.1-rc1
log4j-2.11.2
log4j-2.11.2-rc1
log4j-2.11.2-rc2
log4j-2.11.2-rc3
log4j-2.12.0
log4j-2.12.0-rc1
log4j-2.12.0-rc2
log4j-2.12.1
log4j-2.12.1-rc1
log4j-2.12.2-rc1
log4j-2.13.0-rc1
log4j-2.13.0-rc2
log4j-2.13.1
log4j-2.13.1-rc1
log4j-2.13.1-rc2
log4j-2.13.2
log4j-2.13.2-rc1
log4j-2.13.3
log4j-2.13.3-rc1
log4j-2.14.0-rc1
log4j-2.14.1-rc1
log4j-2.15.0-rc1
log4j-2.15.0-rc2
log4j-2.15.1-rc1
log4j-2.16.0-rc1
log4j-2.4
log4j-2.4.1
log4j-2.5
log4j-2.5-rc1
log4j-2.6
log4j-2.6-rc1
log4j-2.6.1
log4j-2.6.1-rc1
log4j-2.6.2
log4j-2.6.2-rc1
log4j-2.7
log4j-2.7-rc1
log4j-2.7-rc2
log4j-2.8
log4j-2.8-rc1
log4j-2.8.1
log4j-2.8.1-rc1
log4j-2.8.2
log4j-2.8.2-rc1
log4j-2.9-rc1
log4j-2.9.0
log4j-2.9.1-rc1
rel/2.*
rel/2.10.0
rel/2.11.0
rel/2.11.1
rel/2.11.2
rel/2.12.0
rel/2.12.1
rel/2.12.2
rel/2.13.0
rel/2.13.1
rel/2.13.2
rel/2.13.3
rel/2.14.0
rel/2.14.1
rel/2.15.0
rel/2.16.0
rel/2.4
rel/2.4.1
rel/2.5
rel/2.6
rel/2.6.1
rel/2.6.2
rel/2.7
rel/2.8
rel/2.8.1
rel/2.8.2
rel/2.9.0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-45105.json"
unresolved_ranges
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