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CVE-2020-6806

CVE-2020-6806

3Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 2.6%
exploitation probability
2.6%top 15% of all CVEs
observed exploitation
nono source reports it
By carefully crafting promise resolutions, it was possible to cause an out-of-bounds read off the end of an array resized during script execution. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.
Affected products
Mozilla · FirefoxMozilla · Firefox ESRMozilla · Thunderbird
References
http://packetstormsecurity.com/files/157524/Firefox-js-ReadableStreamCloseInternal-Out-Of-Bounds-Access.htmlhttps://bugzilla.mozilla.org/show_bug.cgi?id=1612308https://usn.ubuntu.com/4328-1/https://usn.ubuntu.com/4335-1/https://www.mozilla.org/security/advisories/mfsa2020-08/https://www.mozilla.org/security/advisories/mfsa2020-09/https://www.mozilla.org/security/advisories/mfsa2020-10/