CVE-2021-45046
- Source
- https://cve.org/CVERecord?id=CVE-2021-45046
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-45046.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-45046
- Aliases
- Downstream
- Related
- Published
- 2021-12-14T19:15:07.733Z
- Modified
- 2026-03-15T22:42:54.009848Z
- Severity
-
- 9.0 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain non-default configurations. This could allows attackers with control over Thread Context Map (MDC) input data when the logging configuration uses a non-default Pattern Layout with either a Context Lookup (for example, $${ctx:loginId}) or a Thread Context Map pattern (%X, %mdc, or %MDC) to craft malicious input data using a JNDI Lookup pattern resulting in an information leak and remote code execution in some environments and local code execution in all environments. Log4j 2.16.0 (Java 8) and 2.12.2 (Java 7) fix this issue by removing support for message lookup patterns and disabling JNDI functionality by default.
- References
-
- https://www.cve.org/CVERecord?id=CVE-2021-44228
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-45046
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SIG7FZULMNK2XF6FZRU4VWYDQXNMUGAJ/
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0032
- https://security.gentoo.org/glsa/202310-16
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd
- http://www.openwall.com/lists/oss-security/2021/12/18/1
- https://cert-portal.siemens.com/productcert/pdf/ssa-479842.pdf
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00646.html
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujul2022.html
- http://www.openwall.com/lists/oss-security/2021/12/15/3
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EOKPQGV24RRBBI4TBZUDQMM4MEH7MXCY/
- https://www.debian.org/security/2021/dsa-5022
- https://logging.apache.org/log4j/2.x/security.html
- https://www.kb.cert.org/vuls/id/930724
- https://www.oracle.com/security-alerts/alert-cve-2021-44228.html
- http://www.openwall.com/lists/oss-security/2021/12/14/4
- https://cert-portal.siemens.com/productcert/pdf/ssa-397453.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-661247.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-714170.pdf
- https://www.oracle.com/security-alerts/cpujan2022.html
Affected packages
Git / github.com/apache/logging-log4j2
Affected ranges
- Type
- GIT
- Repo
- https://github.com/apache/logging-log4j2
- Events
-
IntroducedFixedIntroducedFixedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affected
- Database specific
{ "versions": [ { "introduced": "2.0.1" }, { "fixed": "2.12.2" }, { "introduced": "2.13.0" }, { "fixed": "2.16.0" }, { "introduced": "0" }, { "last_affected": "2.0-NA" }, { "introduced": "0" }, { "last_affected": "4.2" }, { "introduced": "0" }, { "last_affected": "4.2" }, { "introduced": "0" }, { "last_affected": "4.2" } ] }
- Type
- GIT
- Repo
- https://github.com/cvat-ai/cvat
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedFixedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedFixedIntroduced0 Unknown introduced commit / All previous commits are affectedFixedIntroduced0 Unknown introduced commit / All previous commits are affectedFixedIntroduced0 Unknown introduced commit / All previous commits are affectedFixedIntroduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
{ "versions": [ { "introduced": "0" }, { "last_affected": "1.5" }, { "introduced": "0" }, { "last_affected": "1.6" }, { "introduced": "0" }, { "fixed": "2.30" }, { "introduced": "0" }, { "last_affected": "2.30" }, { "introduced": "0" }, { "last_affected": "2.30-NA" }, { "introduced": "0" }, { "fixed": "2.7.0" }, { "introduced": "0" }, { "fixed": "2.7.0" }, { "introduced": "0" }, { "fixed": "2.7.0" }, { "introduced": "0" }, { "fixed": "2.7.0" }, { "introduced": "0" }, { "fixed": "2.7.0" } ] }
Affected versions
0.*
0.1.0
0.1.1
0.1.2
0.2.0
v0.*
v0.3.0
v0.4.0
v0.4.1
v0.5.0
v0.5.1
v0.5.2
v0.6.0
v0.6.1
v1.*
v1.0.0
v1.0.0-alpha
v1.0.0-beta.1
v1.0.0-beta.2
v1.1.0
v1.1.0-alpha
v1.1.0-beta
v1.2.0
v1.2.0-beta
v1.3.0
v1.4.0
v1.5.0
v1.6.0
v1.7.0
v2.*
v2.0.0
v2.0.0-alpha
v2.1.0
v2.10.0
v2.10.1
v2.10.2
v2.10.3
v2.11.0
v2.11.1
v2.11.2
v2.11.3
v2.12.0
v2.12.1
v2.13.0
v2.14.0
v2.14.1
v2.14.2
v2.14.3
v2.14.4
v2.15.0
v2.16.0
v2.16.1
v2.16.2
v2.16.3
v2.17.0
v2.18.0
v2.19.0
v2.19.1
v2.2.0
v2.20.0
v2.21.0
v2.21.1
v2.21.2
v2.21.3
v2.22.0
v2.23.0
v2.23.1
v2.24.0
v2.25.0
v2.26.0
v2.26.1
v2.27.0
v2.28.0
v2.29.0
v2.3.0
v2.4.0
v2.4.1
v2.4.2
v2.4.3
v2.4.4
v2.4.5
v2.4.6
v2.4.7
v2.4.8
v2.4.9
v2.5.0
v2.5.1
v2.5.2
v2.6.0
v2.6.1
v2.6.2
v2.7.0
v2.7.1
v2.7.2
v2.7.3
v2.7.4
v2.7.5
v2.7.6
v2.8.0
v2.8.1
v2.8.2
v2.9.0
v2.9.1
v2.9.2
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-45046.json"
unresolved_ranges
[
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2.0-beta9"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2.0-rc1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2.0-rc2"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2019.1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2019.1-NA"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2019.1-sp1912"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "4.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "4.1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "5.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "5.1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "5.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "5.1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2021-12-13"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "3.1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.5"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.6"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.7"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "9.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "3.7"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "3.8"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"fixed": "8.6.2j-398"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2021-12-13"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2021-12-11"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2021-12-13"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "3.2"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "1.1.3"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "4.1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "4.3"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "4.4"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2.80"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2.85"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "4.16.2.1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2020"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2020"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2020-NA"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2020-sp2002"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.70"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "4.70-NA"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "4.70-sp7"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "4.70-sp8"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2.30-sp2"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2019.1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2019.1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2019.1-NA"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2019.1-sp1912"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "10.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "11.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"fixed": "10.0.12"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "34"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "35"
}
]
}
]