Advisory Published
CVE Published
Updated

CVE-2023-29535

First published: Tue Apr 11 2023(Updated: )

Following a Garbage Collector compaction, weak maps may have been accessed before they were correctly traced. This resulted in memory corruption and a potentially exploitable crash.

Credit: security@mozilla.org security@mozilla.org

Affected SoftwareAffected VersionHow to fix
Mozilla Firefox ESR<102.10
102.10
Mozilla Thunderbird<102.10
102.10
Mozilla Firefox<112
112
All of
Mozilla Firefox=112
Google Android
All of
Mozilla Focus=112
Google Android
Mozilla Firefox<112.0
Mozilla Firefox<112.0
Mozilla Firefox ESR<102.10
Mozilla Focus<112.0
Mozilla Thunderbird<102.10
debian/firefox
131.0-1
debian/firefox-esr
115.14.0esr-1~deb11u1
128.3.0esr-1~deb11u2
115.14.0esr-1~deb12u1
128.3.0esr-1~deb12u1
115.15.0esr-1
128.3.0esr-2
debian/thunderbird
1:115.12.0-1~deb11u1
1:115.15.0-1~deb11u1
1:115.12.0-1~deb12u1
1:115.15.0-1~deb12u1
1:128.2.0esr-1
1:128.3.0esr-1

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2023-29535?

    CVE-2023-29535 is a vulnerability in Firefox, Focus for Android, and Firefox ESR that allows for memory corruption and potentially exploitable crashes.

  • Which software versions are affected by CVE-2023-29535?

    Firefox versions prior to 112, Focus for Android versions prior to 112, and Firefox ESR versions prior to 102.10 are affected by CVE-2023-29535.

  • How can CVE-2023-29535 be exploited?

    CVE-2023-29535 can be exploited by accessing weak maps before they are correctly traced, resulting in memory corruption and potentially exploitable crashes.

  • What is the severity of CVE-2023-29535?

    CVE-2023-29535 has a severity level of high, with a CVSS score of 7.

  • How can I fix CVE-2023-29535?

    To fix CVE-2023-29535, update Firefox to version 112 or later, Focus for Android to version 112 or later, or Firefox ESR to version 102.10 or later.

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