Vulnerability · Published Jul 11, 2023 · Assigned by redhat
CVE-2023-1672Race condition exists in the key generation and rotation functionality
Medium 5.3
In plain English
A medium-severity race condition in Fedora from Fedora. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.6%top 52.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | tang | 7-8.el8 | ALSA-2023:7022 |
| AlmaLinux:9 | tang | 14-2.el9 | ALSA-2023:6492 |
| Debian:12 | tang | 11-2+deb12u1 | DEBIAN-CVE-2023-1672 |
| Debian:13 | tang | 14-1 | DEBIAN-CVE-2023-1672 |
| Debian:14 | tang | 14-1 | DEBIAN-CVE-2023-1672 |
| Rocky Linux:8 | tang | 0:7-8.el8 | RLSA-2023:7022 |
| Ubuntu:22.04:LTS | tang | 11-1ubuntu0.1 | USN-6489-1 |
| Ubuntu:22.04:LTS | tang | 11-1ubuntu0.1 | UBUNTU-CVE-2023-1672 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | tang | see references |
| Red Hat | Red Hat Enterprise Linux 7 | see references |
| Red Hat | Red Hat Enterprise Linux 8 | see references |
| Red Hat | Red Hat Enterprise Linux 9 | see references |
| Fedora | Fedora | see references |
Weakness: CWE-362 · Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
References
- https://access.redhat.com/security/cve/CVE-2023-1672 vdb-entry, x_refsource_REDHAT
- RHBZ#2180999 issue-tracking, x_refsource_REDHAT
- https://github.com/latchset/tang/commit/8dbbed10870378f1b2c3cf3df2ea7edca7617096
- https://www.openwall.com/lists/oss-security/2023/06/15/1
- https://lists.debian.org/debian-lts-announce/2023/11/msg00004.html