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                             CERT-Renater

                 Note d'Information No. 2021/VULN325
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DATE                : 16/06/2021

HARDWARE PLATFORM(S): /

OPERATING SYSTEM(S): Systems running Firefox versions prior to 89.0.1.

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https://www.mozilla.org/en-US/security/advisories/mfsa2021-27/
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Mozilla Foundation Security Advisory 2021-27
Security Vulnerabilities fixed in Firefox 89.0.1

Announced       June 16, 2021
Impact          moderate

Products        Firefox
Fixed in
        Firefox 89.0.1


#CVE-2021-29968: Out of bounds read when drawing text characters onto a
Canvas

Reporter       Pascal Chevrel
Impact         moderate


Description

When drawing text onto a canvas with WebRender disabled, an out of
bounds read could occur.

This bug only affects Firefox on Windows. Other operating systems are
unaffected.


References

    Bug 1712047



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+ CERT-RENATER       |    tel : 01-53-94-20-44          +
+ 23/25 Rue Daviel   |    fax : 01-53-94-20-41          +
+ 75013 Paris        |    email:cert@support.renater.fr +
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