CVE-2023-1672
Published: 11 July 2023
A race condition exists in the Tang server functionality for key generation and key rotation. This flaw results in a small time window where Tang private keys become readable by other processes on the same host.
Notes
| Author | Note |
|---|---|
| alexmurray | For tang 6 and 7 in bionic and focal respectively, the code from src/keys.c and src/tangd-rotate-keys.in is not present, however there is an equivalent src/tangd-keygen script which looks like it needs to be updated to set the umask correctly |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
tang Launchpad, Ubuntu, Debian |
xenial |
Ignored
(end of standard support)
|
| trusty |
Ignored
(end of standard support)
|
|
| upstream |
Needs triage
|
|
| kinetic |
Ignored
(end of life, was needed)
|
|
| bionic |
Released
(6-1ubuntu0.1~esm1)
Available with Ubuntu Pro |
|
| focal |
Released
(7-1ubuntu0.2)
|
|
| jammy |
Released
(11-1ubuntu0.1)
|
|
| lunar |
Released
(11-2ubuntu0.1)
|
|
| mantic |
Not vulnerable
(14-2)
|
|
|
Patches: upstream: https://github.com/latchset/tang/commit/8dbbed10870378f1b2c3cf3df2ea7edca7617096 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.3 |
| Attack vector | Adjacent |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |