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CVE-2022-1473

HIGHCVSS 7.5/10EPSS 2.24%

Last modified

CVE-2022-1473 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The OPENSSL_LH_flush() function, which empties a hash table, contains a bug that breaks reuse of the memory occuppied by the removed hash table entries. This function is used when decoding certificates or keys. EPSS estimates a 2.24% chance of exploitation in the next 30 days.

Description

The OPENSSL_LH_flush() function, which empties a hash table, contains a bug that breaks reuse of the memory occuppied by the removed hash table entries. This function is used when decoding certificates or keys. If a long lived process periodically decodes certificates or keys its memory usage will expand without bounds and the process might be terminated by the operating system causing a denial of service. Also traversing the empty hash table entries will take increasingly more time. Typically such long lived processes might be TLS clients or TLS servers configured to accept client certificate authentication. The function was added in the OpenSSL 3.0 version thus older releases are not affected by the issue. Fixed in OpenSSL 3.0.3 (Affected 3.0.0,3.0.1,3.0.2).

Metrics

CVSS 3.1
7.5/10

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

EPSS Probability
2.24%

80.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
OpensslOpenssl>= 3.0.0, < 3.0.3
NetappActive Iq Unified ManagerAll versions
NetappClustered Data OntapAll versions
NetappClustered Data Ontap Antivirus ConnectorAll versions
NetappSantricity Smi-S ProviderAll versions
NetappSmi-S ProviderAll versions
NetappSnapmanagerAll versions
NetappSolidfire\, Enterprise Sds \& Hci Storage NodeAll versions
NetappSolidfire \& Hci Management NodeAll versions
NetappA700s FirmwareAll versions
NetappH300s FirmwareAll versions
NetappH500s FirmwareAll versions
NetappH700s FirmwareAll versions
NetappH300e FirmwareAll versions
NetappH500e FirmwareAll versions
NetappH700e FirmwareAll versions
NetappH410s FirmwareAll versions
NetappAff 8300 FirmwareAll versions
NetappFas 8300 FirmwareAll versions
NetappAff 8700 FirmwareAll versions
NetappFas 8700 FirmwareAll versions
NetappAff A400 FirmwareAll versions
NetappFabric-Attached Storage A400 FirmwareAll versions
NetappA250 FirmwareAll versions
NetappAff 500f FirmwareAll versions
NetappFas 500f FirmwareAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-1473?
The OPENSSL_LH_flush() function, which empties a hash table, contains a bug that breaks reuse of the memory occuppied by the removed hash table entries. This function is used when decoding certificates or keys. If a long lived process periodically decodes certificates or keys its memory usage will expand without bounds and the process might be terminated by the operating system causing a denial of service. Also traversing the empty hash table entries will take increasingly more time. Typically such long lived processes might be TLS clients or TLS servers configured to accept client certificate authentication. The function was added in the OpenSSL 3.0 version thus older releases are not affected by the issue. Fixed in OpenSSL 3.0.3 (Affected 3.0.0,3.0.1,3.0.2).
How severe is CVE-2022-1473?
CVE-2022-1473 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.24% probability of exploitation in the next 30 days.
How do I fix CVE-2022-1473?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-1473?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST