VulnerabilityModified
CVE-2020-36423
A remote attacker can recover plaintext because a certain Lucky 13 countermeasure doesn't properly consider the case of a hardware accelerator.
HIGH 7.5EPSS 1.20%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.20%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in Arm Mbed TLS before 2.23.0. A remote attacker can recover plaintext because a certain Lucky 13 countermeasure doesn't properly consider the case of a hardware accelerator.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.20% probability · 66th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-319
- Affected
- arm/mbed tls · debian/debian linux
- Source
- cve@mitre.org
References
- https://bugs.gentoo.org/730752Issue Tracking, Patch, Third Party Advisory
- https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.7Release Notes, Third Party Advisory
- https://github.com/ARMmbed/mbedtls/releases/tag/v2.23.0Release Notes, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/12/msg00036.htmlMailing List, Third Party Advisory
- https://bugs.gentoo.org/730752Issue Tracking, Patch, Third Party Advisory
- https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.7Release Notes, Third Party Advisory
- https://github.com/ARMmbed/mbedtls/releases/tag/v2.23.0Release Notes, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/12/msg00036.htmlMailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.