| Name | CVE-2016-0772 |
| Description | The smtplib library in CPython (aka Python) before 2.7.12, 3.x before 3.4.5, and 3.5.x before 3.5.2 does not return an error when StartTLS fails, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a "StartTLS stripping attack." |
| 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-1663-1, DLA-522-1, DLA-871-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| python2.7 (PTS) | jessie, jessie (lts) | 2.7.9-2-ds1-1+deb8u12 | fixed |
| stretch (security) | 2.7.13-2+deb9u6 | fixed | |
| stretch (lts), stretch | 2.7.13-2+deb9u9 | fixed | |
| buster (security), buster, buster (lts) | 2.7.16-2+deb10u4 | fixed | |
| bullseye | 2.7.18-8+deb11u1 | fixed | |
| python3.4 (PTS) | jessie, jessie (lts) | 3.4.2-1+deb8u18 | fixed |
| python3.5 (PTS) | stretch (security) | 3.5.3-1+deb9u5 | fixed |
| stretch (lts), stretch | 3.5.3-1+deb9u10 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| python2.7 | source | wheezy | 2.7.3-6+deb7u3 | DLA-522-1 | ||
| python2.7 | source | jessie | 2.7.9-2+deb8u1 | |||
| python2.7 | source | (unstable) | 2.7.12~rc1-1 | |||
| python3.2 | source | wheezy | 3.2.3-7+deb7u1 | DLA-871-1 | ||
| python3.2 | source | (unstable) | (unfixed) | |||
| python3.4 | source | jessie | 3.4.2-1+deb8u2 | DLA-1663-1 | ||
| python3.4 | source | (unstable) | (unfixed) | |||
| python3.5 | source | (unstable) | 3.5.2~rc1-1 |
3.4 branch: https://hg.python.org/cpython/rev/d590114c2394
2.7 branch: https://hg.python.org/cpython/rev/b3ce713fb9be