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CVE-2022-1473

Published: 3 May 2022

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).

Notes

AuthorNote
mdeslaur
OpenSSL v3.x only
Priority

Low

CVSS 3 base score: 7.5

Status

Package Release Status
edk2
Launchpad, Ubuntu, Debian
bionic Not vulnerable

focal Not vulnerable

impish Not vulnerable

jammy Not vulnerable

trusty Does not exist

upstream Needs triage

xenial Ignored
(end of standard support)
nodejs
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(uses system openssl1.0)
focal Not vulnerable
(uses system openssl1.1)
impish Not vulnerable
(uses system openssl1.1)
jammy Not vulnerable
(uses system openssl1.1)
trusty Not vulnerable
(uses system openssl)
upstream Needs triage

xenial Not vulnerable
(uses system openssl)
openssl
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(1.1.1-1ubuntu2.1~18.04.15)
focal Not vulnerable
(1.1.1f-1ubuntu2.12)
impish Not vulnerable
(1.1.1l-1ubuntu1.2)
jammy
Released (3.0.2-0ubuntu1.1)
trusty Needs triage

upstream
Released (3.0.3)
xenial
Released (1.0.2g-1ubuntu4.20+esm3)
Patches:
upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=64c85430f95200b6b51fe9475bd5203f7c19daf1
openssl1.0
Launchpad, Ubuntu, Debian
bionic Not vulnerable

focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist