high
7.8
CWE
787
Advisory Published
CVE Published
Updated

CVE-2020-9955

First published: Wed Sep 16 2020(Updated: )

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in watchOS 7.0, tvOS 14.0, iOS 14.0 and iPadOS 14.0, macOS Big Sur 11.0.1. Processing a maliciously crafted image may lead to arbitrary code execution.

Credit: Mickey Jin Trend MicroXingwei Lin Ant Security LightMickey Jin Trend MicroXingwei Lin Ant Security LightMickey Jin Trend MicroXingwei Lin Ant Security LightMickey Jin Trend MicroXingwei Lin Ant Security Light product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple iPadOS<14.0
Apple iPhone OS<14.0
Apple macOS>=11.0<11.0.1
Apple tvOS<14.0
Apple watchOS<7.0
Apple iOS<14.0
14.0
Apple iPadOS<14.0
14.0
Apple macOS Big Sur<11.0.1
11.0.1
Apple tvOS<14.0
14.0
Apple watchOS<7.0
7.0

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is CVE-2020-9955?

    CVE-2020-9955 is a vulnerability in ImageIO that allows an out-of-bounds write issue.

  • How does CVE-2020-9955 affect Apple tvOS?

    CVE-2020-9955 affects Apple tvOS versions up to and excluding 14.0.

  • How does CVE-2020-9955 affect Apple iOS?

    CVE-2020-9955 affects Apple iOS versions up to and excluding 14.0.

  • How does CVE-2020-9955 affect Apple iPadOS?

    CVE-2020-9955 affects Apple iPadOS versions up to and excluding 14.0.

  • How does CVE-2020-9955 affect Apple macOS Big Sur?

    CVE-2020-9955 affects Apple macOS Big Sur versions up to and excluding 11.0.1.

  • How does CVE-2020-9955 affect Apple watchOS?

    CVE-2020-9955 affects Apple watchOS versions up to and excluding 7.0.

  • How can I fix CVE-2020-9955?

    To fix CVE-2020-9955, update your Apple device to the latest version of the affected software.

  • Where can I find more information about CVE-2020-9955?

    You can find more information about CVE-2020-9955 on the Apple support website.

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