high
7.5
CWE
476 119
Advisory Published
CVE Published
CVE Published
Updated

CVE-2018-14553: Null Pointer Dereference

First published: Thu Jul 12 2018(Updated: )

A flaw was found in gd as shipped with Fedora. Cloning a image with style "attached", triggers a NULL pointer dereference in 'gdImageClone' leading to denial of service. Affected versions: gd-2.2.5 gd-2.2.4 gd-2.2.3 gd-2.2.2 gd-2.2.1 gd-2.2.0 gd-2.1.1 gd-2.1.0 gd-2.1.0-rc2 References: <a class="bz_bug_link bz_secure " title="" href="show_bug.cgi?id=1599032">https://bugzilla.redhat.com/show_bug.cgi?id=1599032</a>

Credit: cve@mitre.org cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
redhat/gd<0:2.2.5-7.el8
0:2.2.5-7.el8
Libgd Libgd>=2.1.1<=2.2.5
Libgd Libgd=2.1.0
Libgd Libgd=2.1.0-rc2
Fedoraproject Fedora=32
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=19.10
Debian Debian Linux=8.0
openSUSE Leap=15.1
debian/libgd2
2.3.0-2
2.3.3-9
2.3.3-12

Remedy

https://github.com/libgd/libgd/commit/a93eac0e843148dc2d631c3ba80af17e9c8c860f

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2018-14553?

    CVE-2018-14553 is a vulnerability in libgd that allows attackers to crash an application via a specific function call sequence.

  • How does CVE-2018-14553 impact PHP?

    CVE-2018-14553 only affects PHP when it is linked with an external libgd (not bundled).

  • What is the severity level of CVE-2018-14553?

    CVE-2018-14553 has a severity level of high.

  • How can CVE-2018-14553 be exploited?

    CVE-2018-14553 can be exploited by attackers to crash an application by using a specific function call sequence.

  • What is the remedy for CVE-2018-14553?

    The remedy for CVE-2018-14553 is to upgrade to libgd version 2.2.5-7.el8 or later.

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