| Name | CVE-2018-12435 |
| Description | Botan 2.5.0 through 2.6.0 before 2.7.0 allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP, related to dsa/dsa.cpp, ec_group/ec_group.cpp, and ecdsa/ecdsa.cpp. 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 | 901619 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| botan (PTS) | buster | 2.9.0-2 | fixed |
| bullseye | 2.17.3+dfsg-2 | fixed | |
| bookworm | 2.19.3+dfsg-1 | fixed | |
| sid, trixie | 2.19.4+dfsg-1 | fixed | |
| botan1.10 (PTS) | jessie, jessie (lts) | 1.10.8-2+deb8u2 | fixed |
| stretch (security), stretch (lts), stretch | 1.10.17-1+deb9u1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| botan | source | (unstable) | 2.6.0-3 | 901619 | ||
| botan1.10 | source | (unstable) | (not affected) |
- botan1.10 <not-affected> (Issue introduced in 2.5.0)
https://github.com/randombit/botan/pull/1604
https://github.com/randombit/botan/commit/48fc8df51d99f9d8ba251219367b3d629cc848e3