CVE-2019-9675 Memory corruption in n/a

What is CVE-2019-9675?

CVE-2019-9675 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 11 Mar 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in PHP 7.x before 7.1.27 and 7.3.x before 7.3.3. phar_tar_writeheaders_int in ext/phar/tar.c has a buffer overflow via a long link value. NOTE: The vendor indicates that the link value is used only when an archive contains a symlink, which currently cannot happen: "This issue allows theoretical compromise of security, but a practical attack is usually impossible.

Weakness: CWE-119

Which versions are affected by CVE-2019-9675?

It affects 3 products.

Products include Canonical Ubuntu Linux, Opensuse Leap, Php Php.

How do I fix CVE-2019-9675?

Upgrade to a fixed version.

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

Is CVE-2019-9675 being exploited?

There is no known exploitation of CVE-2019-9675 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 GHSA-pf47-4qf3-xq2x, UBUNTU-CVE-2019-9675.