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🛡️ CLSA-2026-1777884162 — libservlet3.0-java (CVE-2018-8014)

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Fix CVE(s): CVE-2018-8014

  • Fix build process:
  • debian/keystores/ca-cert.pem, ca.jks: regenerate self-signed test CA

using the existing ca-key.pem (previous CA valid only until

21.03.2025). New validity: 21.04.2026 to 18.04.2036.

  • debian/keystores/localhost-cert.pem, localhost.jks,

localhost-copy1.jks: re-issue against the new CA to keep the chain

consistent. Existing localhost-key.pem is preserved.

  • debian/keystores/user1-cert.pem, user1.jks: re-issue against the

new CA using the existing user1-key.pem (previous cert valid only

until 21.03.2025).

  • debian/keystores/updating-certs.txt: refresh the procedure notes

with current serials and expiry dates.

  • SECURITY UPDATE: Insecure default configuration of the CORS filter

allowed cross-origin requests with credentials from any origin. The

default settings enabled supportsCredentials alongside a wildcard

allowedOrigins. Affects Apache Tomcat 7.0.41 to 7.0.88.

  • debian/patches/CVE-2018-8014.patch: Change default allowedOrigins

to empty and default supportsCredentials to false in the CORS

filter, reject the unsafe combination of supportsCredentials=true

with allowedOrigins=* at configuration time, and simplify the

handleSimpleCORS logic accordingly. Backport of upstream commit

d83a76732e. Note: applications relying on the previous permissive

defaults must configure the filter explicitly.

  • CVE-2018-8014

Affected software

CLSA-2026-1777884162 is recorded against 9 packages.

  • libservlet3.0-java (fixed in 7.0.68-1ubuntu0.4+tuxcare.els3)
  • libservlet3.0-java-doc (fixed in 7.0.68-1ubuntu0.4+tuxcare.els3)
  • libtomcat7-java (fixed in 7.0.68-1ubuntu0.4+tuxcare.els3)
  • tomcat7 (fixed in 7.0.68-1ubuntu0.4+tuxcare.els3)
  • tomcat7-admin (fixed in 7.0.68-1ubuntu0.4+tuxcare.els3)
  • tomcat7-common (fixed in 7.0.68-1ubuntu0.4+tuxcare.els3)
  • tomcat7-docs (fixed in 7.0.68-1ubuntu0.4+tuxcare.els3)
  • tomcat7-examples (fixed in 7.0.68-1ubuntu0.4+tuxcare.els3)
  • tomcat7-user (fixed in 7.0.68-1ubuntu0.4+tuxcare.els3)

Timeline and source

Published on 4 May 2026 and last revised on 4 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

errata.tuxcare.com (Advisory)

Other advisories for this package

libservlet3.0-java has other advisories on record. If you are patching this one, these are worth checking on the same host:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-05-04
Updated 2026-08-20
Modified 2026-06-04
Fix URL N/A

Affected Packages

Software From version Fixed in
libservlet3.0-java — 7.0.68-1ubuntu0.4+tuxcare.els3
libservlet3.0-java-doc — 7.0.68-1ubuntu0.4+tuxcare.els3
libtomcat7-java — 7.0.68-1ubuntu0.4+tuxcare.els3
tomcat7 — 7.0.68-1ubuntu0.4+tuxcare.els3
tomcat7-admin — 7.0.68-1ubuntu0.4+tuxcare.els3
tomcat7-common — 7.0.68-1ubuntu0.4+tuxcare.els3
tomcat7-docs — 7.0.68-1ubuntu0.4+tuxcare.els3
tomcat7-examples — 7.0.68-1ubuntu0.4+tuxcare.els3
tomcat7-user — 7.0.68-1ubuntu0.4+tuxcare.els3

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