Vulnerability in Arm Mbed Crypto
CVE-2019-16910
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.)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.018 (77.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- Arm Mbed Crypto
- Arm Mbed TLS
- Trustedfirmware Mbed TLS
- Debian Linux — versions 10.0
- Fedoraproject Fedora — versions 29, 30, 31
References
- tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2019-10 (Vendor Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Mailing List, Third Party Advisory)
- github.com/ARMmbed/mbedtls/commit/298a43a77ec0ed2c19a8c924ddd8571ef3e65dfd (Patch)
- github.com/ARMmbed/mbedtls/commit/33f66ba6fd234114aa37f0209dac031bb2870a9b (Patch)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/12/msg00036.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-16910?
- CVE-2019-16910 is a medium-severity vulnerability in Arm Mbed Crypto. CVSS score: 5.3/10. Published 2019-09-26.
- How severe is CVE-2019-16910?
- Medium severity. CVSS v3 base score is 5.3 out of 10.