CVE-2018-4121: Buffer Overflow
First published: Thu Mar 29 2018(Updated: )
WebKit. Multiple memory corruption issues were addressed with improved memory handling.
Credit: Yuan Deng Antfound by OSS-Fuzz Jun Kokatsu @shhnjk an anonymous researcher Trend MicroHanming Zhang @4shitak4 Qihoo 360 Vulcan TeamNatalie Silvanovich Google Project ZeroWanderingGlitch Trend MicroWanderingGlitch Trend Microan anonymous researcher Trend MicroZach Markley likemeng Baidu Security Lab working with Trend MicroOmair Trend MicroWanderingGlitch Trend MicroWanderingGlitch Trend MicroWanderingGlitch Trend MicroHanming Zhang @4shitak4 Qihoo 360 Vulcan TeamYuan Deng Antfound by OSS-Fuzz Jun Kokatsu @shhnjk an anonymous researcher Trend MicroHanming Zhang @4shitak4 Qihoo 360 Vulcan Teamnatashenka Google Project ZeroWanderingGlitch Trend MicroWanderingGlitch Trend Microan anonymous researcher Trend MicroZach Markley likemeng Baidu Security Lab working with Trend MicroOmair Trend MicroWanderingGlitch Trend MicroWanderingGlitch Trend MicroWanderingGlitch Trend MicroHanming Zhang @4shitak4 Qihoo 360 Vulcan Teamfound by OSS-Fuzz natashenka Google Project ZeroWanderingGlitch Trend MicroWanderingGlitch Trend Microlikemeng Baidu Security Lab working with Trend MicroWanderingGlitch Trend MicroWanderingGlitch Trend MicroWanderingGlitch Trend MicroYuan Deng Antfound by OSS-Fuzz Jun Kokatsu @shhnjk an anonymous researcher Trend MicroHanming Zhang @4shitak4 Qihoo 360 Vulcan Teamnatashenka Google Project ZeroWanderingGlitch Trend MicroWanderingGlitch Trend Microan anonymous researcher Trend MicroZach Markley likemeng Baidu Security Lab working with Trend MicroOmair Trend MicroWanderingGlitch Trend MicroWanderingGlitch Trend MicroWanderingGlitch Trend MicroHanming Zhang @4shitak4 Qihoo 360 Vulcan TeamYuan Deng Antfound by OSS-Fuzz Jun Kokatsu @shhnjk an anonymous researcher Trend MicroHanming Zhang @4shitak4 Qihoo 360 Vulcan Teamnatashenka Google Project ZeroWanderingGlitch Trend MicroWanderingGlitch Trend Microan anonymous researcher Trend MicroZach Markley likemeng Baidu Security Lab working with Trend MicroOmair Trend MicroWanderingGlitch Trend MicroWanderingGlitch Trend MicroWanderingGlitch Trend MicroHanming Zhang @4shitak4 Qihoo 360 Vulcan Team product-security@apple.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Apple iCloud for Windows | <7.4 | 7.4 |
| Apple Safari | <11.1 | 11.1 |
| Apple watchOS | <4.3 | 4.3 |
| Apple tvOS | <11.3 | 11.3 |
| Apple iOS | <11.3 | 11.3 |
| Apple Safari | <11.1 | |
| Apple iPhone OS | <11.3 | |
| Apple tvOS | <11.3 | |
| Apple watchOS | <4.3 | |
| Apple iCloud | <7.4 | |
| Microsoft Windows | ||
| Apple iTunes | <12.7.4 |
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Reference Links
- https://support.apple.com/en-us/HT208693 (Advisory)
- https://support.apple.com/en-us/HT208695 (Advisory)
- https://support.apple.com/en-us/HT208696 (Advisory)
- https://support.apple.com/en-us/HT208697 (Advisory)
- https://support.apple.com/en-us/HT208698 (Advisory)
- http://www.securitytracker.com/id/1040604
- https://github.com/mwrlabs/CVE-2018-4121
- https://security.gentoo.org/glsa/201808-04
- https://support.apple.com/HT208693
- https://support.apple.com/HT208694
- https://support.apple.com/HT208695
- https://support.apple.com/HT208696
- https://support.apple.com/HT208697
- https://support.apple.com/HT208698
- https://www.exploit-db.com/exploits/44427/
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- CVE-2018-4144
- CVE-2018-4101
- CVE-2018-4114
- CVE-2018-4118
- CVE-2018-4119
- CVE-2018-4120
- CVE-2018-4121
- CVE-2018-4122
- CVE-2018-4125
- CVE-2018-4127
- CVE-2018-4128
- CVE-2018-4129
- CVE-2018-4130
- CVE-2018-4161
- CVE-2018-4162
- CVE-2018-4163
- CVE-2018-4165
- CVE-2018-4113
- CVE-2018-4146
- CVE-2018-4117
- CVE-2018-4207
- CVE-2018-4208
- CVE-2018-4209
- CVE-2018-4210
- CVE-2018-4212
- CVE-2018-4213
- CVE-2018-4145
- CVE-2018-4102
- CVE-2018-4116
- CVE-2018-4186
- CVE-2018-4137
- CVE-2018-4133
- CVE-2018-4155
- CVE-2018-4158
- CVE-2018-4142
- CVE-2018-4167
- CVE-2018-4150
- CVE-2018-4104
- CVE-2018-4143
- CVE-2018-4185
- CVE-2017-15412
- CVE-2018-4390
- CVE-2018-4391
- CVE-2018-4166
- CVE-2018-4157
- CVE-2018-4115
- CVE-2018-4177
- CVE-2018-4123
- CVE-2018-4168
- CVE-2018-4172
- CVE-2018-4151
- CVE-2018-4187
- CVE-2018-4174
- CVE-2018-4156
- CVE-2018-4134
- CVE-2018-4149
- CVE-2018-4173
- CVE-2018-4154
- CVE-2018-4140
- CVE-2018-4148
- CVE-2018-4110
- CVE-2018-4131
Frequently Asked Questions
What is CVE-2018-4121?
CVE-2018-4121 is a vulnerability in certain Apple products that allows for multiple memory corruption issues due to improved memory handling.
Which Apple products are affected by CVE-2018-4121?
The following Apple products are affected by CVE-2018-4121: iOS before 11.3, Safari before 11.1, iCloud before 7.4 on Windows, iTunes before 12.7.4 on Windows, tvOS before 11.3, and watchOS before 4.3.
What is the severity of CVE-2018-4121?
The severity of CVE-2018-4121 is high, with a severity score of 8.8.
How can I fix CVE-2018-4121?
To fix CVE-2018-4121, update to the latest versions of the affected Apple products: iOS 11.3 or later, Safari 11.1 or later, iCloud 7.4 or later on Windows, iTunes 12.7.4 or later on Windows, tvOS 11.3 or later, and watchOS 4.3 or later.
Where can I find more information about CVE-2018-4121?
You can find more information about CVE-2018-4121 on the following references: [SecurityTracker](http://www.securitytracker.com/id/1040604), [GitHub](https://github.com/mwrlabs/CVE-2018-4121), [Gentoo security advisory](https://security.gentoo.org/glsa/201808-04).
- collector/apple-support
- alias/CVE-2018-4114
- alias/CVE-2018-4118
- alias/CVE-2018-4119
- alias/CVE-2018-4120
- alias/CVE-2018-4121
- alias/CVE-2018-4122
- alias/CVE-2018-4125
- alias/CVE-2018-4127
- alias/CVE-2018-4128
- alias/CVE-2018-4129
- alias/CVE-2018-4130
- alias/CVE-2018-4161
- alias/CVE-2018-4162
- alias/CVE-2018-4163
- alias/CVE-2018-4165
- agent/type
- agent/last-modified-date
- agent/first-publish-date
- agent/software-canonical-lookup-request
- agent/event
- agent/weakness
- agent/references
- agent/severity
- agent/author
- agent/description
- collector/nvd-index
- agent/softwarecombine
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/apple
- canonical/apple icloud for windows
- canonical/apple safari
- canonical/apple watchos
- canonical/apple tvos
- canonical/apple ios
- canonical/apple iphone os
- canonical/apple icloud
- vendor/microsoft
- canonical/microsoft windows
- canonical/apple itunes