CVE-2018-11574 Integer overflow in n/a

What is CVE-2018-11574?

CVE-2018-11574 is a critical vulnerability in Canonical Ubuntu Linux, published on 14 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-20, CWE-190

Which versions are affected by CVE-2018-11574?

It affects 2 products.

Products include Canonical Ubuntu Linux, Point-to-Point Protocol Project Point-to-Point Protocol.

How do I fix CVE-2018-11574?

Apply the vendor's patch.

Is CVE-2018-11574 being exploited?

There is no known exploitation of CVE-2018-11574 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2018-11574, GHSA-hx7c-3c6c-mhm3, UBUNTU-CVE-2018-11574, USN-3810-1.