CVE-2020-12399
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.7%
exploitation probability
0.7%top 50% of all CVEs
observed exploitation
nono source reports it
NSS has shown timing differences when performing DSA signatures, which was exploitable and could eventually leak private keys. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.
References
https://bugzilla.mozilla.org/show_bug.cgi?id=1631576https://lists.debian.org/debian-lts-announce/2020/09/msg00029.htmlhttps://security.gentoo.org/glsa/202007-49https://usn.ubuntu.com/4421-1/https://www.debian.org/security/2020/dsa-4726https://www.mozilla.org/security/advisories/mfsa2020-20/https://www.mozilla.org/security/advisories/mfsa2020-21/https://www.mozilla.org/security/advisories/mfsa2020-22/