CVE-2021-24122
tomcat8 - security update
5.9
MEDIUM
CVSS 3.1
EPSS 61.4%
Description
When serving resources from a network location using the NTFS file system, Apache Tomcat versions 10.0.0-M1 to 10.0.0-M9, 9.0.0.M1 to 9.0.39, 8.5.0 to 8.5.59 and 7.0.0 to 7.0.106 were susceptible to JSP source code disclosure in some configurations. The root cause was the unexpected behaviour of the JRE API File.getCanonicalPath() which in turn was caused by the inconsistent behaviour of the Windows API (FindFirstFileW) in some circumstances.
How to fix CVE-2021-24122
To remediate CVE-2021-24122, upgrade the affected package to a fixed version below.
- —upgrade to 7.0.107 or later
- —upgrade to 8.5.54-0+deb9u6 or later
- —upgrade to 9.0.40-1 or later
- —upgrade to 10.0.0-M10 or later
Is CVE-2021-24122 being exploited?
Likely — EPSS is 61.4%, placing CVE-2021-24122 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (4)
- >= 7.0.0, < 7.0.107, >= 8.5.0, < 8.5.60, >= 9.0.1, < 9.0.40
- from 0, < 8.5.54-0+deb9u6
- from 0, < 9.0.40-1
- >= 10.0.0-M1, < 10.0.0-M10
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |