Vulnerability Details : CVE-2023-1672
Potential exploit
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.
Products affected by CVE-2023-1672
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
- cpe:2.3:a:tang_project:tang:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-1672
0.02%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 3 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-1672
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.3
|
MEDIUM | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
1.6
|
3.6
|
NIST | |
|
5.3
|
MEDIUM | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
1.6
|
3.6
|
Red Hat, Inc. |
CWE ids for CVE-2023-1672
-
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2023-1672
-
https://bugzilla.redhat.com/show_bug.cgi?id=2180999
2180999 – (CVE-2023-1672) CVE-2023-1672 tang: Race condition exists in the key generation and rotation functionalityIssue Tracking;Patch;Third Party Advisory
-
https://www.openwall.com/lists/oss-security/2023/06/15/1
oss-security - CVE-2023-1672: race condition in Tang exposes private keys to other processesExploit;Mailing List;Third Party Advisory
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https://github.com/latchset/tang/commit/8dbbed10870378f1b2c3cf3df2ea7edca7617096
Fix race condition when creating/rotating keys (#123) · latchset/tang@8dbbed1 · GitHubPatch
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https://access.redhat.com/security/cve/CVE-2023-1672
CVE-2023-1672- Red Hat Customer PortalThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2023/11/msg00004.html
[SECURITY] [DLA 3648-1] tang security update
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