CVE-2018-4306: Use After Free
First published: Wed Sep 12 2018(Updated: )
A use after free issue was addressed with improved memory management. This issue affected versions prior to iOS 12, tvOS 12, Safari 12, iTunes 12.9 for Windows, iCloud for Windows 7.7.
Credit: Ivan Fratric Google Project Zero product-security@apple.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ubuntu/webkit2gtk | <2.22.2-0ubuntu0.18.04.1 | 2.22.2-0ubuntu0.18.04.1 |
| ubuntu/webkit2gtk | <2.22.2-1ubuntu1 | 2.22.2-1ubuntu1 |
| ubuntu/webkit2gtk | <2.22.2-1ubuntu1 | 2.22.2-1ubuntu1 |
| ubuntu/webkit2gtk | <2.22.2-1ubuntu1 | 2.22.2-1ubuntu1 |
| ubuntu/webkit2gtk | <2.22.2-1ubuntu1 | 2.22.2-1ubuntu1 |
| ubuntu/webkit2gtk | <2.22.2-1ubuntu1 | 2.22.2-1ubuntu1 |
| ubuntu/webkit2gtk | <2.22.2-1ubuntu1 | 2.22.2-1ubuntu1 |
| ubuntu/webkit2gtk | <2.22.2-1ubuntu1 | 2.22.2-1ubuntu1 |
| ubuntu/webkit2gtk | <2.22.2-1ubuntu1 | 2.22.2-1ubuntu1 |
| ubuntu/webkit2gtk | <2.22.2-1ubuntu1 | 2.22.2-1ubuntu1 |
| ubuntu/webkit2gtk | <2.22.2-1ubuntu1 | 2.22.2-1ubuntu1 |
| ubuntu/webkit2gtk | <2.22.2-1ubuntu1 | 2.22.2-1ubuntu1 |
| ubuntu/webkit2gtk | <2.22.2-1ubuntu1 | 2.22.2-1ubuntu1 |
| ubuntu/webkit2gtk | <2.22.0 | 2.22.0 |
| debian/webkit2gtk | 2.44.2-1~deb11u1 2.44.2-1~deb12u1 2.44.2-1 | |
| tvOS | <12 | 12 |
| Apple iCloud | <7.7 | 7.7 |
| iTunes | <12.9 | 12.9 |
| Safari | <12 | 12 |
| Apple iOS and iPadOS | <12 | 12 |
| Safari | <12 | |
| iPhone OS | <12.0 | |
| tvOS | <12 | |
| All of | ||
| Any of | ||
| iCloud | <7.7 | |
| iTunes | <12.9 | |
| Microsoft Windows | ||
| iCloud | <7.7 | |
| iTunes | <12.9 | |
| Microsoft Windows |
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Reference Links
- https://support.apple.com/en-us/HT209141 (Advisory)
- https://support.apple.com/en-us/HT209140 (Advisory)
- https://support.apple.com/en-us/HT209109 (Advisory)
- https://support.apple.com/kb/HT209106
- https://support.apple.com/kb/HT209107
- https://support.apple.com/kb/HT209109
- https://support.apple.com/kb/HT209140
- https://support.apple.com/kb/HT209141
- https://launchpad.net/bugs/cve/CVE-2018-4306
- https://support.apple.com/en-us/HT209107 (Advisory)
- https://support.apple.com/en-us/HT209106 (Advisory)
- https://webkitgtk.org/security/WSA-2018-0007.html
- https://security-tracker.debian.org/tracker/CVE-2018-4306
- https://www.openwall.com/lists/oss-security/2018/09/29/1
- https://ubuntu.com/security/notices/USN-3781-1
- https://www.cve.org/CVERecord?id=CVE-2018-4306
- https://nvd.nist.gov/vuln/detail/CVE-2018-4306
- https://ubuntu.com/security/CVE-2018-4306
Parent vulnerabilities
(Appears in the following advisories)
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- CVE-2018-4321
- CVE-2018-5383
- CVE-2018-4126
- CVE-2018-4412
- CVE-2018-4414
- CVE-2018-4347
- CVE-2018-4433
- CVE-2018-4426
- CVE-2018-4331
- CVE-2018-4332
- CVE-2018-4343
- CVE-2018-4408
- CVE-2018-4341
- CVE-2018-4354
- CVE-2018-4383
- CVE-2018-4401
- CVE-2018-4305
- CVE-2018-4399
- CVE-2018-4407
- CVE-2018-4363
- CVE-2018-4336
- CVE-2018-4337
- CVE-2018-4340
- CVE-2018-4344
- CVE-2018-4425
- CVE-2018-4313
- CVE-2016-1777
- CVE-2018-4395
- CVE-2018-4203
- CVE-2018-4304
- CVE-2018-4316
- CVE-2018-4345
- CVE-2018-4191
- CVE-2018-4299
- CVE-2018-4359
- CVE-2018-4323
- CVE-2018-4358
- CVE-2018-4328
- CVE-2018-4197
- CVE-2018-4318
- CVE-2018-4306
- CVE-2018-4312
- CVE-2018-4314
- CVE-2018-4315
- CVE-2018-4317
- CVE-2018-4309
- CVE-2018-4361
- CVE-2018-4474
- CVE-2018-4360
- CVE-2018-4311
- CVE-2018-4319
- CVE-2018-4307
- CVE-2018-4329
- CVE-2018-4195
- CVE-2018-4322
- CVE-2018-4356
- CVE-2018-4333
- CVE-2018-4355
- CVE-2018-4335
- CVE-2018-4326
- CVE-2018-4310
- CVE-2018-4352
- CVE-2018-4362
- CVE-2018-4325
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2018-4306.
What is the severity of CVE-2018-4306?
CVE-2018-4306 has a severity value of 8.8, which is considered high.
Which software versions are affected by CVE-2018-4306?
Versions prior to iOS 12, tvOS 12, Safari 12, iTunes 12.9 for Windows, iCloud for Windows 7.7 are affected by CVE-2018-4306.
How can I fix CVE-2018-4306?
To fix CVE-2018-4306, it is recommended to update to iOS 12, tvOS 12, Safari 12, iTunes 12.9 for Windows, iCloud for Windows 7.7 or later versions.
Where can I find more information about CVE-2018-4306?
You can find more information about CVE-2018-4306 on the Apple support page: [Link 1](https://support.apple.com/kb/HT209106), [Link 2](https://support.apple.com/kb/HT209107), [Link 3](https://support.apple.com/kb/HT209109).
- agent/type
- collector/launchpad-cve
- source/Launchpad
- agent/first-publish-date
- agent/severity
- agent/weakness
- agent/description
- collector/usn-cve
- source/Ubuntu
- agent/software-canonical-lookup
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- source/Debian
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/event
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- agent/source
- collector/apple-support
- alias/CVE-2018-4318
- alias/CVE-2018-4306
- alias/CVE-2018-4312
- alias/CVE-2018-4314
- alias/CVE-2018-4315
- alias/CVE-2018-4317
- agent/software-canonical-lookup-request
- agent/author
- alias/CVE-2018-4197
- agent/softwarecombine
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- collector/nvd-cve
- source/NVD
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- vendor/apple
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- canonical/safari
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