CVE-2022-1473
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.52%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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).
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.52% probability · 84th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-459
- Affected
- openssl/openssl · netapp/active iq unified manager · netapp/clustered data ontap · netapp/clustered data ontap antivirus connector · netapp/santricity smi-s provider · netapp/smi-s provider · netapp/snapmanager · netapp/solidfire\, enterprise sds \& hci storage node · netapp/solidfire \& hci management node · netapp/a700s firmware · netapp/h300s firmware · netapp/h500s firmware · netapp/h700s firmware · netapp/h300e firmware · netapp/h500e firmware · netapp/h700e firmware · netapp/h410s firmware · netapp/aff 8300 firmware · netapp/fas 8300 firmware · netapp/aff 8700 firmware · +6 more
- Source
- openssl-security@openssl.org
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-953464.pdf
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=64c85430f95200b6b51fe9475bd5203f7c19daf1
- https://security.gentoo.org/glsa/202210-02Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220602-0009/Third Party Advisory
- https://www.openssl.org/news/secadv/20220503.txtVendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-953464.pdf
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=64c85430f95200b6b51fe9475bd5203f7c19daf1
- https://security.gentoo.org/glsa/202210-02Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220602-0009/Third Party Advisory
- https://www.openssl.org/news/secadv/20220503.txtVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.