CVE-2017-2784

high

Published 2017-04-20 · Modified 2026-05-13

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CVSS v3

8.1

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v4 NEW

—

not yet in upstream

VIR risk

8.1

Description

An exploitable free of a stack pointer vulnerability exists in the x509 certificate parsing code of ARM mbed TLS before 1.3.19, 2.x before 2.1.7, and 2.4.x before 2.4.2. A specially crafted x509 certificate, when parsed by mbed TLS library, can cause an invalid free of a stack pointer leading to a potential remote code execution. In order to exploit this vulnerability, an attacker can act as either a client or a server on a network to deliver malicious x509 certificates to vulnerable applications.

Predictions

Exploit likelihood

88%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

OS	Version	Status	Fixed in
arch		fixed	`2.4.2-1`
debian	bookworm	fixed	`2.4.2-1`
debian	bullseye	fixed	`2.4.2-1`
debian	forky	fixed	`2.4.2-1`
debian	sid	fixed	`2.4.2-1`
debian	trixie	fixed	`2.4.2-1`

Application impact

Vendor	Product	Versions
arm	mbed_tls	`{"endIncluding":"1.3.18"}`
arm	mbed_tls	`2.0.0`
arm	mbed_tls	`2.1.0`
arm	mbed_tls	`2.1.1`
arm	mbed_tls	`2.1.2`
arm	mbed_tls	`2.1.3`
arm	mbed_tls	`2.1.4`
arm	mbed_tls	`2.1.5`
arm	mbed_tls	`2.1.6`
arm	mbed_tls	`2.4.0`

References

CWEs

CWE-295

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.