CVE-2023-29535

Description

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. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10.

6.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.10%

Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org

Affected: Mozilla Firefox

Affected: Mozilla Focus for Android

Affected: Mozilla Firefox ESR

Affected: Mozilla Firefox for Android

Affected: Mozilla Thunderbird

References

Link	Tags
https://www.mozilla.org/security/advisories/mfsa2023-15/	vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-14/	vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-13/	vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1820543	issue tracking

Frequently Asked Questions

What is the severity of CVE-2023-29535?: CVE-2023-29535 has been scored as a medium severity vulnerability.
How to fix CVE-2023-29535?: To fix CVE-2023-29535, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-29535 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2023-29535 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-29535?: CVE-2023-29535 affects Mozilla Firefox, Mozilla Focus for Android, Mozilla Firefox ESR, Mozilla Firefox for Android, Mozilla Thunderbird.

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