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
| Author | Note |
|---|---|
| mdeslaur | OpenSSL v3.x only |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
edk2 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
|
| focal |
Not vulnerable
|
|
| impish |
Not vulnerable
|
|
| jammy |
Not vulnerable
|
|
| kinetic |
Not vulnerable
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Needs triage
|
|
|
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 openssl 1.1)
|
|
| kinetic |
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)
|
|
| kinetic |
Released
(3.0.2-0ubuntu2)
|
|
| 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
|
|
| kinetic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |