Vulnerability Monitor

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CVE-2021-44732

Mbed TLS before 3.0.1 has a double free in certain out-of-memory conditions, as demonstrated by an mbedtls_ssl_set_session() failure.

Published

2021-12-20T08:15:06.620

Last Modified

2024-11-21T06:31:28.383

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
CWE-415

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	arm	mbed_tls	< 2.16.12	Yes
Application	arm	mbed_tls	< 2.28.0	Yes
Application	arm	mbed_tls	3.0.0	Yes
Application	arm	mbed_tls	3.0.0	Yes
Operating System	debian	debian_linux	10.0	Yes

References

https://bugs.gentoo.org/829660 Issue Tracking, Mailing List, Third Party Advisory ([email protected])
https://github.com/ARMmbed/mbedtls/releases Release Notes ([email protected])
https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.12 Release Notes ([email protected])
https://github.com/ARMmbed/mbedtls/releases/tag/v2.28.0 Release Notes ([email protected])
https://github.com/ARMmbed/mbedtls/releases/tag/v3.1.0 Release Notes ([email protected])
https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html Mailing List, Third Party Advisory ([email protected])
https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2021-12 Exploit, Mitigation, Third Party Advisory ([email protected])
https://bugs.gentoo.org/829660 Issue Tracking, Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/ARMmbed/mbedtls/releases Release Notes (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.12 Release Notes (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/ARMmbed/mbedtls/releases/tag/v2.28.0 Release Notes (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/ARMmbed/mbedtls/releases/tag/v3.1.0 Release Notes (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2021-12 Exploit, Mitigation, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)