| Name | CVE-2020-36242 |
| Description | In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| python-cryptography (PTS) | bookworm | 38.0.4-3+deb12u1 | fixed |
| bookworm (security) | 38.0.4-3~deb12u1 | fixed | |
| trixie | 43.0.0-3+deb13u1 | fixed | |
| forky, sid | 49.0.0-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| python-cryptography | source | stretch | (not affected) | |||
| python-cryptography | source | (unstable) | 3.3.2-1 |
[buster] - python-cryptography <no-dsa> (Minor issue)
[stretch] - python-cryptography <not-affected> (Vulnerable code introduced later)
https://github.com/pyca/cryptography/issues/5615