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…
Does this matter?
Lower severity and a low EPSS score (1.77%). Track it; it rarely justifies an emergency change on its own.
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.)
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
- EPSS
- 1.77% probability · 77th percentile
- CISA KEV
- Not listed
- Affected
- arm/mbed crypto · arm/mbed tls · trustedfirmware/mbed tls · fedoraproject/fedora · debian/debian linux
- Source
- cve@mitre.org
References
- https://github.com/ARMmbed/mbedtls/commit/298a43a77ec0ed2c19a8c924ddd8571ef3e65dfdPatch
- https://github.com/ARMmbed/mbedtls/commit/33f66ba6fd234114aa37f0209dac031bb2870a9bPatch
- https://lists.debian.org/debian-lts-announce/2022/12/msg00036.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CGSKQSGR5SOBRBXDSSPTCDSBB5K3GMPF/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CSFFOROD6IVLADZHNJC2LPDV7FQRP7XB/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PEHHH2DOBXB25CAU3Q6E66X723VAYTB5/Mailing List, Third Party Advisory
- https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2019-10Vendor Advisory
- https://github.com/ARMmbed/mbedtls/commit/298a43a77ec0ed2c19a8c924ddd8571ef3e65dfdPatch
- https://github.com/ARMmbed/mbedtls/commit/33f66ba6fd234114aa37f0209dac031bb2870a9bPatch
- https://lists.debian.org/debian-lts-announce/2022/12/msg00036.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CGSKQSGR5SOBRBXDSSPTCDSBB5K3GMPF/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CSFFOROD6IVLADZHNJC2LPDV7FQRP7XB/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PEHHH2DOBXB25CAU3Q6E66X723VAYTB5/Mailing List, Third Party Advisory
- https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2019-10Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.