| Name | CVE-2019-16910 |
| Description | Arm Mbed TLS before 2.19.0 and Arm Mbed Crypto before 2.0.0, when deterministic ECDSA is enabled, use an RNG with insufficient entropy for blinding, which might allow an attacker to recover a private key via side-channel attacks if a victim signs the same message many times. (For Mbed TLS, the fix is also available in versions 2.7.12 and 2.16.3.) |
| 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-3249-1 |
| Debian Bugs | 941265 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| mbedtls (PTS) | stretch (security), stretch (lts), stretch | 2.4.2-1+deb9u4 | vulnerable |
| buster (security), buster, buster (lts) | 2.16.9-0~deb10u1 | fixed | |
| bullseye | 2.16.9-0.1 | fixed | |
| bookworm | 2.28.3-1 | fixed | |
| sid, trixie | 3.6.2-3 | fixed | |
| polarssl (PTS) | jessie, jessie (lts) | 1.3.9-2.1+deb8u4 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| mbedtls | source | buster | 2.16.9-0~deb10u1 | DLA-3249-1 | ||
| mbedtls | source | (unstable) | 2.16.3-1 | 941265 | ||
| polarssl | source | (unstable) | (unfixed) |
[stretch] - mbedtls <no-dsa> (Minor issue)
[jessie] - polarssl <no-dsa> (Minor issue, backport intrusive because of API changes)
https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2019-10
https://github.com/ARMmbed/mbedtls/commit/298a43a77ec0ed2c19a8c924ddd8571ef3e65dfd (2.7.12)
https://github.com/ARMmbed/mbedtls/commit/33f66ba6fd234114aa37f0209dac031bb2870a9b (2.16.3)