CVE-2019-9169 Memory corruption in n/a

What is CVE-2019-9169?

CVE-2019-9169 is a critical memory corruption vulnerability in Canonical Ubuntu Linux, published on 26 Feb 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In the GNU C Library (aka glibc or libc6) through 2.29, proceed_next_node in posix/regexec.c has a heap-based buffer over-read via an attempted case-insensitive regular-expression match.

Weakness: CWE-125

Which versions are affected by CVE-2019-9169?

It affects 6 products.

Products include Canonical Ubuntu Linux, Gnu Glibc, Mcafee Web Gateway, Netapp Cloud Backup, Netapp Ontap Select Deploy Administration Utility, Netapp Steelstore Cloud Integrated Storage.

How do I fix CVE-2019-9169?

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-2019-9169 being exploited?

There is no known exploitation of CVE-2019-9169 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 CLSA-2025-1757690669, CLSA-2025-1757690876, CLSA-2025-1757700075, CLSA-2025-1757923104, CLSA-2025-1757924940, CLSA-2025-1758228486 and 5 more.