| Name | CVE-2020-12399 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2243-1, DLA-2247-1, DLA-2266-1, DLA-2388-1, DSA-4695-1, DSA-4702-1, DSA-4726-1 |
| Debian Bugs | 961752 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| firefox (PTS) | sid | 138.0.4-1 | fixed |
| firefox-esr (PTS) | bullseye | 115.14.0esr-1~deb11u1 | fixed |
| bullseye (security) | 128.9.0esr-1~deb11u1 | fixed | |
| bookworm, bookworm (security) | 128.10.0esr-1~deb12u1 | fixed | |
| trixie | 128.10.0esr-1 | fixed | |
| sid | 128.10.1esr-1 | fixed | |
| nss (PTS) | bullseye | 2:3.61-1+deb11u3 | fixed |
| bullseye (security) | 2:3.61-1+deb11u4 | fixed | |
| bookworm, bookworm (security) | 2:3.87.1-1+deb12u1 | fixed | |
| sid, trixie | 2:3.110-1 | fixed | |
| thunderbird (PTS) | bullseye | 1:115.12.0-1~deb11u1 | fixed |
| bullseye (security) | 1:128.10.1esr-1~deb11u1 | fixed | |
| bookworm | 1:128.10.0esr-1~deb12u1 | fixed | |
| bookworm (security) | 1:128.10.1esr-1~deb12u1 | fixed | |
| trixie | 1:128.10.0esr-1 | fixed | |
| sid | 1:128.10.1esr-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| firefox | source | (unstable) | 77.0-1 | |||
| firefox-esr | source | jessie | 68.9.0esr-1~deb8u2 | DLA-2243-1 | ||
| firefox-esr | source | stretch | 68.9.0esr-1~deb9u1 | DSA-4695-1 | ||
| firefox-esr | source | buster | 68.9.0esr-1~deb10u1 | DSA-4695-1 | ||
| firefox-esr | source | (unstable) | 68.9.0esr-1 | |||
| nss | source | jessie | 2:3.26-1+debu8u11 | DLA-2266-1 | ||
| nss | source | stretch | 2:3.26.2-1.1+deb9u2 | DLA-2388-1 | ||
| nss | source | buster | 2:3.42.1-1+deb10u3 | DSA-4726-1 | ||
| nss | source | (unstable) | 2:3.53-1 | 961752 | ||
| thunderbird | source | jessie | 1:68.9.0-1~deb8u2 | DLA-2247-1 | ||
| thunderbird | source | stretch | 1:68.9.0-1~deb9u1 | DSA-4702-1 | ||
| thunderbird | source | buster | 1:68.9.0-1~deb10u1 | DSA-4702-1 | ||
| thunderbird | source | (unstable) | 1:68.9.0-1 |
https://bugzilla.mozilla.org/show_bug.cgi?id=1631576 (non-public)
Fixed by: https://hg.mozilla.org/projects/nss/rev/daa823a4a29bcef0fec33a379ec83857429aea2e
https://www.mozilla.org/en-US/security/advisories/mfsa2020-20/#CVE-2020-12399
https://www.mozilla.org/en-US/security/advisories/mfsa2020-21/#CVE-2020-12399
https://www.mozilla.org/en-US/security/advisories/mfsa2020-22/#CVE-2020-12399