CVE-2024-6119: 500f — Fix

Description

Issue 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.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-843 CWE-843

Affected Products

Vendor	Product	Versions
openssl	openssl	3.0.0 — 3.0.15
openssl	openssl	3.1.0 — 3.1.7
openssl	openssl	3.2.0 — 3.2.3
openssl	openssl	3.3.0 — 3.3.2
netapp	active_iq_unified_manager	All
netapp	management_services_for_element_software_and_netapp_hci	All
netapp	ontap_9	All
netapp	ontap_select_deploy_administration_utility	All
netapp	ontap_tools	All
netapp	brocade_fabric_operating_system	All
netapp	h300s_firmware	All
netapp	h300s	All
netapp	h500s_firmware	All
netapp	h500s	All
netapp	h700s_firmware	All
netapp	h700s	All
netapp	h410s_firmware	All
netapp	h410s	All
netapp	h410c_firmware	All
netapp	h410c	All
netapp	h610c_firmware	All
netapp	h610c	All
netapp	h610s_firmware	All
netapp	h610s	All
netapp	h615c	All
netapp	h615c_firmware	All
netapp	bootstrap_os	All
netapp	hci_compute_node	All
netapp	a250_firmware	All
netapp	a250	All
netapp	500f_firmware	All
netapp	500f	All
netapp	c250_firmware	All
netapp	c250	All

References

Advisories & Patches

https://github.com/openssl/openssl/commit/05f360d9e849a1b277db628f1f13083a7f8dd04f https://github.com/openssl/openssl/commit/06d1dc3fa96a2ba5a3e22735a033012aadc9f0d6 https://github.com/openssl/openssl/commit/621f3729831b05ee828a3203eddb621d014ff2b2 https://github.com/openssl/openssl/commit/7dfcee2cd2a63b2c64b9b4b0850be64cb695b0a0 https://openssl-library.org/news/secadv/20240903.txt

Other References

http://www.openwall.com/lists/oss-security/2024/09/03/4 https://lists.freebsd.org/archives/freebsd-security/2024-September/000303.html https://security.netapp.com/advisory/ntap-20240912-0001/ https://cert-portal.siemens.com/productcert/html/ssa-082556.html https://cert-portal.siemens.com/productcert/html/ssa-613116.html https://cert-portal.siemens.com/productcert/html/ssa-769027.html

Frequently Asked Questions

What is CVE-2024-6119? +

Issue 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. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-6119? +

CVE-2024-6119 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-6119? +

CVE-2024-6119 affects products from netapp, openssl, specifically: 500f, 500f_firmware, a250, a250_firmware, active_iq_unified_manager, bootstrap_os, brocade_fabric_operating_system, c250, c250_firmware, h300s, h300s_firmware, h410c, h410c_firmware, h410s, h410s_firmware, h500s, h500s_firmware, h610c, h610c_firmware, h610s, h610s_firmware, h615c, h615c_firmware, h700s, h700s_firmware, hci_compute_node, management_services_for_element_software_and_netapp_hci, ontap_9, ontap_select_deploy_administration_utility, ontap_tools, openssl. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-6119? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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