CVE-2021-23981

A texture upload of a Pixel Buffer Object could have confused the WebGL code to skip binding the buffer used to unpack it, resulting in memory corruption and a potentially exploitable information leak or crash. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.

Summary:

A texture upload of a Pixel Buffer Object could have confused the WebGL code to skip binding the buffer used to unpack it, resulting in memory corruption and a potentially exploitable information leak or crash. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.

Reference Links(if available):

  • https://www.mozilla.org/security/advisories/mfsa2021-11/
  • https://www.mozilla.org/security/advisories/mfsa2021-12/
  • https://www.mozilla.org/security/advisories/mfsa2021-10/
  • https://bugzilla.mozilla.org/show_bug.cgi?id=1692832
  • https://security.gentoo.org/glsa/202104-09
  • CVSS Score (if available)

    v2: / MEDIUMAV:N/AC:M/Au:N/C:P/I:N/A:P

    v3: / HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

    Links to Exploits(if available)