| Name | CVE-2013-1740 |
| Description | The ssl_Do1stHandshake function in sslsecur.c in libssl in Mozilla Network Security Services (NSS) before 3.15.4, when the TLS False Start feature is enabled, allows man-in-the-middle attackers to spoof SSL servers by using an arbitrary X.509 certificate during certain handshake traffic. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| nss (PTS) | jessie, jessie (lts) | 2:3.26-1+debu8u18 | fixed |
| stretch (security) | 2:3.26.2-1.1+deb9u5 | fixed |
| stretch (lts), stretch | 2:3.26.2-1.1+deb9u7 | fixed |
| buster | 2:3.42.1-1+deb10u5 | fixed |
| buster (security) | 2:3.42.1-1+deb10u8 | fixed |
| bullseye (security), bullseye | 2:3.61-1+deb11u3 | fixed |
| bookworm | 2:3.87.1-1 | fixed |
| sid, trixie | 2:3.99-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| nss | source | (unstable) | 2:3.15.4-1 | | | |
Notes
[squeeze] - nss <no-dsa> (false start disabled by default, needs to be enabled by clients)
[wheezy] - nss <no-dsa> (false start disabled by default, needs to be enabled by clients)
false start must be enabled by the client (mainly browsers)