Vulnerability · Published Feb 8, 2024 · Assigned by mitre
CVE-2024-25189
Critical 9.8
In plain English
A critical-severity security flaw in the libjwt package (Debian). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)1.0%top 38.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
libjwt 1.15.3 uses strcmp (which is not constant time) to verify authentication, which makes it easier to bypass authentication via a timing side channel.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | libjwt | 1.10.2-1+deb12u1 | DEBIAN-CVE-2024-25189 |
| Debian:13 | libjwt | 1.17.0-2 | DEBIAN-CVE-2024-25189 |
| Debian:14 | libjwt | 1.17.0-2 | DEBIAN-CVE-2024-25189 |
| Ubuntu:22.04:LTS | libjwt | no fix listed | UBUNTU-CVE-2024-25189 |
| Ubuntu:24.04:LTS | libjwt | no fix listed | UBUNTU-CVE-2024-25189 |
| Ubuntu:25.10 | libjwt | no fix listed | UBUNTU-CVE-2024-25189 |
| Ubuntu:26.04:LTS | libjwt | no fix listed | UBUNTU-CVE-2024-25189 |
| Ubuntu:26.10 | libjwt | no fix listed | UBUNTU-CVE-2024-25189 |
Affected products (as reported)
Weakness: CWE-203 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H