| Name | CVE-2018-16869 |
| Description | A Bleichenbacher type side-channel based padding oracle attack was found in the way nettle handles endian conversion of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run a process on the same physical core as the victim process, could use this flaw extract plaintext or in some cases downgrade any TLS connections to a vulnerable server. |
| 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 |
|---|
| nettle (PTS) | jessie, jessie (lts) | 2.7.1-5+deb8u3 | vulnerable |
| stretch (security), stretch (lts), stretch | 3.3-1+deb9u1 | vulnerable |
| buster, buster (security) | 3.4.1-1+deb10u1 | fixed |
| bullseye | 3.7.3-1 | fixed |
| bookworm | 3.8.1-2 | fixed |
| sid, trixie | 3.9.1-2.2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| nettle | source | (unstable) | 3.4.1~rc1-1 | | | |
Notes
[stretch] - nettle <no-dsa> (Minor issue)
[jessie] - nettle <no-dsa> (Minor issue - https://lists.debian.org/debian-lts/2019/03/msg00021.html)
http://cat.eyalro.net/
https://lists.lysator.liu.se/pipermail/nettle-bugs/2018/007363.html
The upstream correction also makes a new public function that packages using
nettle should use. This means that fixing this CVE is a pre-requisite for
fixing other CVEs like CVE-2018-16868.
[wheezy] - nettle <ignored> (Required changes are too intrusive at this point in time and the benefits do not outweigh them.)