CVE-2018-4276: Null Pointer Dereference

Reference Links

• https://support.apple.com/en-us/HT208937 (Advisory)
• https://support.apple.com/kb/HT208937

Parent vulnerabilities

(Appears in the following advisories)

• HT208937

Peer vulnerabilities

(Found alongside the following vulnerabilities)

• CVE-2018-4470
• CVE-2018-4289
• CVE-2018-4268
• CVE-2018-4285
• CVE-2018-5383
• CVE-2018-4293
• CVE-2018-4269
• CVE-2018-4276
• CVE-2018-4178
• CVE-2018-4456
• CVE-2018-4283
• CVE-2018-3665
• CVE-2018-4259
• CVE-2018-4286
• CVE-2018-4287
• CVE-2018-4288
• CVE-2018-4291
• CVE-2018-4280
• CVE-2018-4248
• CVE-2018-4277
• CVE-2018-6797
• CVE-2018-6913
• CVE-2017-0898
• CVE-2017-10784
• CVE-2017-14033
• CVE-2017-14064
• CVE-2017-17405
• CVE-2017-17742
• CVE-2018-6914
• CVE-2018-8777
• CVE-2018-8778
• CVE-2018-8779
• CVE-2018-8780
• CVE-2018-4274

Frequently Asked Questions

• What is CVE-2018-4276?

  CVE-2018-4276 is a vulnerability in CUPS that allows for a null pointer dereference.

• How does CVE-2018-4276 impact macOS High Sierra?

  CVE-2018-4276 impacted versions of macOS High Sierra prior to 10.13.6, where a null pointer dereference was addressed with improved validation.

• What is the severity of CVE-2018-4276?

  CVE-2018-4276 has a severity rating of 7.5 (high).

• How can I fix CVE-2018-4276 on macOS High Sierra?

  To fix CVE-2018-4276 on macOS High Sierra, update to version 10.13.6 or later.

• Where can I find more information about CVE-2018-4276?

  More information about CVE-2018-4276 can be found at the following references: [https://support.apple.com/en-us/HT208937](https://support.apple.com/en-us/HT208937) and [https://support.apple.com/kb/HT208937](https://support.apple.com/kb/HT208937).