Vulnerability · Published May 3, 2022 · Assigned by openssl
CVE-2022-1473Resource leakage when decoding certificates and keys
High 7.5
In plain English
A high-severity security flaw in OpenSSL from OpenSSL. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 4.7% (higher than 92% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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).
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:9 | openssl | 1:3.0.1-41.el9_0 | ALSA-2022:6224 |
| AlmaLinux:9 | openssl-devel | 1:3.0.1-41.el9_0 | ALSA-2022:6224 |
| AlmaLinux:9 | openssl-libs | 1:3.0.1-41.el9_0 | ALSA-2022:6224 |
| AlmaLinux:9 | openssl-perl | 1:3.0.1-41.el9_0 | ALSA-2022:6224 |
| Alpine:v3.20 | openssl | 3.0.3-r0 | ALPINE-CVE-2022-1473 |
| Alpine:v3.21 | openssl | 3.0.3-r0 | ALPINE-CVE-2022-1473 |
| Alpine:v3.22 | openssl | 3.0.3-r0 | ALPINE-CVE-2022-1473 |
| Alpine:v3.23 | openssl | 3.0.3-r0 | ALPINE-CVE-2022-1473 |
| Alpine:v3.24 | openssl | 3.0.3-r0 | ALPINE-CVE-2022-1473 |
| Ubuntu:22.04:LTS | openssl | 3.0.2-0ubuntu1.1 | USN-5402-1 |
| Ubuntu:22.04:LTS | openssl | 3.0.2-0ubuntu1.1 | UBUNTU-CVE-2022-1473 |
Affected products (as reported)
Weakness: CWE-459 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- https://www.openssl.org/news/secadv/20220503.txt
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=64c85430f95200b6b51fe9475bd5203f7c19daf1
- https://security.netapp.com/advisory/ntap-20220602-0009/
- GLSA-202210-02 vendor-advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-953464.pdf
- https://cert-portal.siemens.com/productcert/html/ssa-953464.html
- https://cert-portal.siemens.com/productcert/html/ssa-419740.html
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html
- https://cert-portal.siemens.com/productcert/html/ssa-942865.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html