CVE-2015-9542 Memory corruption in n/a

What is CVE-2015-9542?

CVE-2015-9542 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 24 Feb 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

add_password in pam_radius_auth.c in pam_radius 1.4.0 does not correctly check the length of the input password, and is vulnerable to a stack-based buffer overflow during memcpy(). An attacker could send a crafted password to an application (loading the pam_radius library) and crash it. Arbitrary code execution might be possible, depending on the application, C library, compiler, and other factors.

Weakness: CWE-787

Which versions are affected by CVE-2015-9542?

It affects 3 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Freeradius Pam Radius.

How do I fix CVE-2015-9542?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2015-9542 being exploited?

There is no known exploitation of CVE-2015-9542 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-2015-9542, DLA-2116-1, DLA-2304-1, GHSA-x66h-w4xq-44q4, SUSE-SU-2020:1117-1, SUSE-SU-2021:1896-1 and 6 more.