CVE-2023-1672
published 2023-07-11CVE-2023-1672: 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…
PriorityP424medium5.3CVSS 3.1
AVAACHPRNUINSUCHINAN
EPSS
0.57%
43.8th percentile
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
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | tang | < tang 11-2+deb12u1 (bookworm) | tang 11-2+deb12u1 (bookworm) |
| fedoraproject | fedora | — | — |
| msrc | cbl2_tang_14-1_on_cbl_mariner_2.0 | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| tang_project | tang | < 14 | 14 |
| tang_project | tang | >= 0 < 8-3+deb11u2 | 8-3+deb11u2 |
| tang_project | tang | >= 0 < 11-2+deb12u1 | 11-2+deb12u1 |
| tang_project | tang | >= 0 < 14-1 | 14-1 |
| tang_project | tang | >= 0 < 14-1 | 14-1 |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
osv5.3MEDIUM
vendor_debian5.3MEDIUM
vendor_msrc5.3MEDIUM
vendor_redhat5.3MEDIUM
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GHSA
GHSA-9wgp-4vcq-75qr: A race condition exists in the Tang server functionality for key generation and key rotation
ghsa_unreviewed·2023-07-11
CVE-2023-1672 [MEDIUM] CWE-362 GHSA-9wgp-4vcq-75qr: A race condition exists in the Tang server functionality for key generation and key rotation
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.
OSV
CVE-2023-1672: A race condition exists in the Tang server functionality for key generation and key rotation
osv·2023-07-11·CVSS 5.3
CVE-2023-1672 [MEDIUM] CVE-2023-1672: A race condition exists in the Tang server functionality for key generation and key rotation
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.
Ubuntu
Tang vulnerability
vendor_ubuntu·2023-11-20
CVE-2023-1672 Tang vulnerability
Title: Tang vulnerability
Summary: Tang could allow unintended access to secret keys.
Brian McDermott discovered that Tang incorrectly handled permissions when
creating/rotating keys. A local attacker could possibly use this issue to
read the keys.
Instructions: In general, a standard system update will make all the necessary changes.
Microsoft
Race condition exists in the key generation and rotation functionality
vendor_msrc·2023-07-11·CVSS 5.3
CVE-2023-1672 [MEDIUM] CWE-362 Race condition exists in the key generation and rotation functionality
Race condition exists in the key generation and rotation functionality
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
redhat: redhat
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Referen
Red Hat
tang: Race condition exists in the key generation and rotation functionality
vendor_redhat·2023-06-07·CVSS 5.3
CVE-2023-1672 [MEDIUM] CWE-362 tang: Race condition exists in the key generation and rotation functionality
tang: Race condition exists in the key generation and rotation functionality
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.
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.
Package: tang (Red Hat Enterprise Linux 7) - Out of support scope
Debian
CVE-2023-1672: tang - A race condition exists in the Tang server functionality for key generation and ...
vendor_debian·2023·CVSS 5.3
CVE-2023-1672 [MEDIUM] CVE-2023-1672: tang - A race condition exists in the Tang server functionality for key generation and ...
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.
Scope: local
bookworm: resolved (fixed in 11-2+deb12u1)
bullseye: resolved (fixed in 8-3+deb11u2)
forky: resolved (fixed in 14-1)
sid: resolved (fixed in 14-1)
trixie: resolved (fixed in 14-1)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://access.redhat.com/security/cve/CVE-2023-1672https://bugzilla.redhat.com/show_bug.cgi?id=2180999https://github.com/latchset/tang/commit/8dbbed10870378f1b2c3cf3df2ea7edca7617096https://lists.debian.org/debian-lts-announce/2023/11/msg00004.htmlhttps://www.openwall.com/lists/oss-security/2023/06/15/1https://access.redhat.com/security/cve/CVE-2023-1672https://bugzilla.redhat.com/show_bug.cgi?id=2180999https://github.com/latchset/tang/commit/8dbbed10870378f1b2c3cf3df2ea7edca7617096https://lists.debian.org/debian-lts-announce/2023/11/msg00004.htmlhttps://www.openwall.com/lists/oss-security/2023/06/15/1
2023-07-11
Published