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centosCentOS ProjectCESA-2019:0766
HistoryApr 16, 2019 - 7:39 p.m.

mod_auth_mellon security update

2019-04-1619:39:45
CentOS Project
lists.centos.org
168

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

0.018 Low

EPSS

Percentile

87.8%

CentOS Errata and Security Advisory CESA-2019:0766

The mod_auth_mellon module for the Apache HTTP Server is an authentication service that implements the SAML 2.0 federation protocol. The module grants access based on the attributes received in assertions generated by an IdP server.

Security Fix(es):

  • mod_auth_mellon: authentication bypass in ECP flow (CVE-2019-3878)

  • mod_auth_mellon: open redirect in logout url when using URLs with backslashes (CVE-2019-3877)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

  • mod_auth_mellon Cert files name wrong when hostname contains a number (fixed in upstream package) (BZ#1697487)

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2019-April/085432.html

Affected packages:
mod_auth_mellon
mod_auth_mellon-diagnostics

Upstream details at:
https://access.redhat.com/errata/RHSA-2019:0766

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

0.018 Low

EPSS

Percentile

87.8%