CVE-2020-36476: An issue was discovered in Mbed TLS before 2.24.0 (and before 2.16.8 LTS and before 2.7.17 LTS). There is missing zeroization of plaintext buffers in…

PriorityP339high7.5CVSS 3.1

AVNACLPRNUINSUCNIHAN

EPSS

1.55%

72.0th percentile

An issue was discovered in Mbed TLS before 2.24.0 (and before 2.16.8 LTS and before 2.7.17 LTS). There is missing zeroization of plaintext buffers in mbedtls_ssl_read to erase unused application data from memory.

Affected

12 ranges

Vendor	Product	Version range	Fixed in
arm	mbed_tls	< 2.7.17	2.7.17
arm	mbed_tls	>= 2.17.0 < 2.24.0	2.24.0
arm	mbed_tls	>= 2.8.0 < 2.16.8	2.16.8
debian	debian_linux	—	—
debian	debian_linux	—	—
debian	mbedtls	< mbedtls 2.16.9-0.1 (bookworm)	mbedtls 2.16.9-0.1 (bookworm)
mbed	mbedtls	>= 0 < 2.16.9-0.1	2.16.9-0.1
mbed	mbedtls	>= 0 < 2.16.9-0.1	2.16.9-0.1
mbed	mbedtls	>= 0 < 2.16.9-0.1	2.16.9-0.1
mbed	mbedtls	>= 0 < 2.16.9-0.1	2.16.9-0.1
msrc	azl3_qemu_8.2.0-16_on_azure_linux_3.0	—	—
msrc	cbl2_qemu_6.2.0-24_on_cbl_mariner_2.0	—	—

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:N

osv7.5HIGH

vendor_debian7.5HIGH

vendor_msrc7.5HIGH

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