Vulnerability Report

CVE-2021-45105

Title: Oracle Insurance Data Gateway Denial of Service (DoS)

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2021-45105.

CWE Category CWE-20
Published Date Dec 18, 2021
Modified Date May 29, 2026
Exploit Status Not Found
Score 5.9 CVSS v3.1
Exploit Probability (EPSS)
100.00%

Vulnerability Summary

CVE-2021-45105: 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.

Impacted Vendors

B
bmc 1
V
vmware 1
A
accellion 1
W
websense 1
C
cubettechnologies 1
S
sonicwall 8
O
oracle 105
M
mcafee 1
K
kemptechnologies 1
B
bea 1
I
ibm 1
M
magzter 1
A
apache 1
N
netapp 1
S
siemens 5
Y
yellowfinbi 1
H
hillstonenet 1
N
novell 1

Reference Links

http://www.openwall.com/lists/oss-security/2021/12/19/1 https://cert-portal.siemens.com/productcert/pdf/ssa-479842.pdf https://cert-portal.siemens.com/productcert/pdf/ssa-501673.pdf https://logging.apache.org/log4j/2.x/security.html https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0032 https://security.netapp.com/advisory/ntap-20211218-0001/ https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd https://www.debian.org/security/2021/dsa-5024 https://www.kb.cert.org/vuls/id/930724 https://www.oracle.com/security-alerts/cpuapr2022.html https://www.oracle.com/security-alerts/cpujan2022.html https://www.oracle.com/security-alerts/cpujul2022.html https://www.zerodayinitiative.com/advisories/ZDI-21-1541/ http://www.openwall.com/lists/oss-security/2021/12/19/1 https://cert-portal.siemens.com/productcert/pdf/ssa-479842.pdf https://cert-portal.siemens.com/productcert/pdf/ssa-501673.pdf https://logging.apache.org/log4j/2.x/security.html https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0032 https://security.netapp.com/advisory/ntap-20211218-0001/ https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd https://www.debian.org/security/2021/dsa-5024 https://www.kb.cert.org/vuls/id/930724 https://www.oracle.com/security-alerts/cpuapr2022.html https://www.oracle.com/security-alerts/cpujan2022.html https://www.oracle.com/security-alerts/cpujul2022.html https://www.zerodayinitiative.com/advisories/ZDI-21-1541/
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.9
Attack Vector
NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity MEDIUM
5.9
Attack Vector
NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
4.3
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:M/Au:N/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2021-45105 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity HIGH
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.