| Name | CVE-2018-12437 |
| Description | LibTomCrypt through 1.18.1 allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 901626 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libtomcrypt (PTS) | jessie, jessie (lts) | 1.17-6+deb8u1 | vulnerable |
| stretch | 1.17-9 | vulnerable |
| buster | 1.18.2-1 | fixed |
| bullseye | 1.18.2-5 | fixed |
| bookworm | 1.18.2-6 | fixed |
| sid, trixie | 1.18.2+dfsg-7 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| libtomcrypt | source | wheezy | (unfixed) | end-of-life | | |
| libtomcrypt | source | (unstable) | 1.18.2-1 | low | | 901626 |
Notes
[stretch] - libtomcrypt <no-dsa> (Minor issue)
[jessie] - libtomcrypt <no-dsa> (Minor issue)
https://github.com/libtom/libtomcrypt/issues/407
https://github.com/libtom/libtomcrypt/pull/408