UBUNTU-CVE-2019-3877

Advisory lineage Upstream: 1 Downstream: 2
Upstream
CVE-2019-3877
Published: 22 Mar 2019, 00:00
Last modified:04 Feb 2026, 02:52

Vulnerability Summary

Overall Risk (default)
low
23/100
CVSS Score
5.8 MEDIUM
3.0 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

22 Mar 2019, 00:00
Published
Vulnerability first disclosed
04 Feb 2026, 02:52
Last Modified
Vulnerability information updated

Description

A vulnerability was found in mod_auth_mellon before v0.14.2. An open redirect in the logout URL allows requests with backslashes to pass through by assuming that it is a relative URL, while the browsers silently convert backslash characters into forward slashes treating them as an absolute URL. This mismatch allows an attacker to bypass the redirect URL validation logic in apr_uri_parse function.

CVSS Metrics

  • v3.0•MEDIUM•Score: 5.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Affected Systems

  • ubuntu•libapache2-mod-auth-mellon

    < 0.12.0-2+deb9u1build0.16.04.1 | < 0.13.1-1ubuntu0.1 | < 0.14.2-1ubuntu1

References (4)