Home/CVE/Mbed TLS before 3.0.1 has a double free in certain out-of-memory conditions, as demonstrated by an mbedtls_ssl_set_sessi
CVE

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_sessi

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.

CRITICAL · CVSS 9.8 EPSS 0.00954
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-415Double Free
▤

Affected Products & Versions

4
arm mbed tls< 2.16.12
arm mbed tls>= 2.17.0 and < 2.28.0
arm mbed tlsall versions
debian linuxall versions
⚠

Public Exploits & PoCs

1
poctls.mbed.org · mbedtls-security-advisory-2021-12tls.mbed.org
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD20 Dec 2021 · 08:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

2
usnUSN-8123-1
msrcCVE-2021-44732
🔗

References & Sources

7
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugs.gentoo.org/829660Issue TrackingMailing ListThird Party Advisory
https://github.com/ARMmbed/mbedtls/releasesRelease Notes
https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.12Release Notes
https://github.com/ARMmbed/mbedtls/releases/tag/v2.28.0Release Notes
https://github.com/ARMmbed/mbedtls/releases/tag/v3.1.0Release Notes
https://lists.debian.org/debian-lts-announce/2022/12/msg00036.htmlMailing ListThird Party Advisory
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