Possible denial of service in X.509 name checks

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2024-6119
StatePUBLISHED
Assigneropenssl
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-09-03 16:15:07 UTC
Updated2026-05-12 12:17:20 UTC
DescriptionIssue summary: Applications performing certificate name checks (e.g., TLS clients checking server certificates) may attempt to read an invalid memory address resulting in abnormal termination of the application process. Impact summary: Abnormal termination of an application can a cause a denial of service. Applications performing certificate name checks (e.g., TLS clients checking server certificates) may attempt to read an invalid memory address when comparing the expected name with an `otherName` subject alternative name of an X.509 certificate. This may result in an exception that terminates the application program. Note that basic certificate chain validation (signatures, dates, ...) is not affected, the denial of service can occur only when the application also specifies an expected DNS name, Email address or IP address. TLS servers rarely solicit client certificates, and even when they do, they generally don't perform a name check against a reference identifier (expected identity), but rather extract the presented identity after checking the certificate chain. So TLS servers are generally not affected and the severity of the issue is Moderate. The FIPS modules in 3.3, 3.2, 3.1 and 3.0 are not affected by this issue.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-843 | CWE-843 CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1ADPDECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Openssl Openssl All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA OpenSSL OpenSSL affected 3.3.0 3.3.2 semver Not specified
CNA OpenSSL OpenSSL affected 3.2.0 3.2.3 semver Not specified
CNA OpenSSL OpenSSL affected 3.1.0 3.1.7 semver Not specified
CNA OpenSSL OpenSSL affected 3.0.0 3.0.15 semver Not specified
ADP Openssl Openssl affected 3.3.0 3.3.2 custom Not specified
ADP Openssl Openssl affected 3.2.0 3.2.3 custom Not specified
ADP Openssl Openssl affected 3.1.0 3.1.7 custom Not specified
ADP Openssl Openssl affected 3.0.0 3.0.15 custom Not specified
ADP Siemens RUGGEDCOM RST2428P affected V3.1 custom Not specified
ADP Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 Family unaffected * custom Not specified
ADP Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 Family affected V3.1 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified

References

ReferenceSourceLinkTags
cert-portal.siemens.com/productcert/html/ssa-082556.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
cert-portal.siemens.com/productcert/html/ssa-769027.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
openssl-library.org/news/secadv/20240903.txt [email protected] openssl-library.org Vendor Advisory
cert-portal.siemens.com/productcert/html/ssa-613116.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
github.com/openssl/openssl/commit/7dfcee2cd2a63b2c64b9b4b0850be64cb695b0a0 [email protected] github.com Patch
github.com/openssl/openssl/commit/06d1dc3fa96a2ba5a3e22735a033012aadc9f0d6 [email protected] github.com Patch
lists.freebsd.org/archives/freebsd-security/2024-September/000303.html af854a3a-2127-422b-91ae-364da2661108 lists.freebsd.org Mailing List
github.com/openssl/openssl/commit/05f360d9e849a1b277db628f1f13083a7f8dd04f [email protected] github.com Patch
security.netapp.com/advisory/ntap-20240912-0001 af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
github.com/openssl/openssl/commit/621f3729831b05ee828a3203eddb621d014ff2b2 [email protected] github.com Patch
www.openwall.com/lists/oss-security/2024/09/03/4 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: David Benjamin (Google) (en)

CNA: Viktor Dukhovni (en)

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