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CVE-2018-11574

Published: 14 June 2018

Improper input validation together with an integer overflow in the EAP-TLS protocol implementation in PPPD may cause a crash, information disclosure, or authentication bypass. This implementation is distributed as a patch for PPPD 0.91, and includes the affected eap.c and eap-tls.c files. Configurations that use the `refuse-app` option are unaffected.

Notes

AuthorNote
mdeslaur
the EAP-TLS patch is an Ubuntu-specific change in earlier releases

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
ppp
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic
Released (2.4.7-2+2ubuntu1.1)
cosmic
Released (2.4.7-2+3ubuntu1)
trusty
Released (2.4.5-5.1ubuntu2.3)
upstream
Released (2.4.7-2+3)
xenial
Released (2.4.7-1+2ubuntu1.16.04.1)

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H