CVE-2019-11759

3Vexday Risk Score

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

ssvc Trackepss 1.8%

exploitation probability

1.8%top 22% of all CVEs

observed exploitation

nono source reports it

An attacker could have caused 4 bytes of HMAC output to be written past the end of a buffer stored on the stack. This could be used by an attacker to execute arbitrary code or more likely lead to a crash. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

Affected products

Mozilla · Firefox Mozilla · Firefox ESR Mozilla · Thunderbird

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1577953 https://security.gentoo.org/glsa/202003-10 https://usn.ubuntu.com/4335-1/https://www.mozilla.org/security/advisories/mfsa2019-33/https://www.mozilla.org/security/advisories/mfsa2019-34/https://www.mozilla.org/security/advisories/mfsa2019-35/