high
7.8
CWE
190 20
Advisory Published
CVE Published
Updated

CVE-2020-27945: Integer Overflow

First published: Thu Nov 12 2020(Updated: )

An integer overflow was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, macOS Big Sur 11.0.1. Processing maliciously crafted web content may lead to arbitrary code execution.

Credit: Zhuo Liang Qihoo 360 Vulcan Team product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple macOS<11.0.1
11.0.1
Apple macOS<11.2
11.2
macOS Catalina
macOS Mojave
Apple iOS and macOS>=10.14<10.14.6
Apple iOS and macOS>=10.15<10.15.7
Apple iOS and macOS=10.14.6
Apple iOS and macOS=10.14.6-security_update_2019-004
Apple iOS and macOS=10.14.6-security_update_2019-005
Apple iOS and macOS=10.14.6-security_update_2019-006
Apple iOS and macOS=10.14.6-security_update_2019-007
Apple iOS and macOS=10.14.6-security_update_2020-001
Apple iOS and macOS=10.14.6-security_update_2020-002
Apple iOS and macOS=10.14.6-security_update_2020-003
Apple iOS and macOS=10.14.6-security_update_2020-004
Apple iOS and macOS=10.14.6-security_update_2020-005
Apple iOS and macOS=10.14.6-security_update_2020-006
Apple iOS and macOS=10.14.6-supplemental_update
Apple iOS and macOS=10.14.6-supplemental_update_2
Apple iOS and macOS=10.15.7
Apple iOS and macOS=10.15.7-supplemental_update
Apple iOS and macOS>=11.0<11.2.0

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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 the vulnerability ID of this vulnerability?

    The vulnerability ID is CVE-2020-27945.

  • What is the title of this vulnerability?

    The title of this vulnerability is 'CFNetwork Cache. An integer overflow was addressed with improved input validation.'

  • What is the severity level of CVE-2020-27945?

    The severity level of CVE-2020-27945 has not been specified.

  • Which software versions are affected by this vulnerability?

    macOS Big Sur versions up to 11.0.1, macOS Big Sur versions up to 11.2, macOS Catalina, and macOS Mojave are affected by this vulnerability.

  • How can I fix the vulnerability CVE-2020-27945?

    Apply the recommended patches provided by Apple for affected software versions or update to a non-affected version.

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