CVE-2018-14553 Null dereference in n/a

What is CVE-2018-14553?

CVE-2018-14553 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 11 Feb 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

gdImageClone in gd.c in libgd 2.1.0-rc2 through 2.2.5 has a NULL pointer dereference allowing attackers to crash an application via a specific function call sequence. Only affects PHP when linked with an external libgd (not bundled).

Weakness: CWE-476

Which versions are affected by CVE-2018-14553?

It affects 5 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Libgd Libgd, Opensuse Leap.

How do I fix CVE-2018-14553?

Upgrade to a fixed version.

Is CVE-2018-14553 being exploited?

There is no known exploitation of CVE-2018-14553 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 ALPINE-CVE-2018-14553, DEBIAN-CVE-2018-14553, DLA-2106-1, GHSA-jw3x-9g83-4hvr, MGASA-2020-0098, UBUNTU-CVE-2018-14553.