Bug 1443602 (CVE-2017-2784) - CVE-2017-2784 mbedtls: ARM Mbedtls x509 ECDSA invalid public key use-after-free
Summary: CVE-2017-2784 mbedtls: ARM Mbedtls x509 ECDSA invalid public key use-after-free
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: CVE-2017-2784
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1443603 1443604
Blocks:
TreeView+ depends on / blocked
 
Reported: 2017-04-19 14:23 UTC by Andrej Nemec
Modified: 2021-02-17 02:15 UTC (History)
2 users (show)

Fixed In Version:
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Last Closed: 2017-04-19 14:38:31 UTC
Embargoed:

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Description Andrej Nemec 2017-04-19 14:23:22 UTC 
An exploitable free of a stack pointer vulnerability exists in the x509 certificate parsing code of ARM mbedTLS 2.4.0. A specially crafted x509 certificate, when parsed by mbedTLS 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.

External References:

http://www.talosintelligence.com/reports/TALOS-2017-0274/
Comment 1 Andrej Nemec 2017-04-19 14:23:53 UTC 
Created mbedtls tracking bugs for this issue:

Affects: epel-all [bug 1443604]
Affects: fedora-all [bug 1443603]
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