CVE-2017-18187: Integer Overflow
First published: Wed Feb 14 2018(Updated: )
In ARM mbed TLS before 2.7.0, there is a bounds-check bypass through an integer overflow in PSK identity parsing in the ssl_parse_client_psk_identity() function in library/ssl_srv.c.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ARM mbed TLS | <2.7.0 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| ubuntu/mbedtls | <2.4.2-1+<2.7.0-2 | 2.4.2-1+ 2.7.0-2 |
| ubuntu/mbedtls | <2.2.1-2ubuntu0.3 | 2.2.1-2ubuntu0.3 |
| ubuntu/polarssl | <1.3.9-2.1+ | 1.3.9-2.1+ |
| debian/mbedtls | 2.16.9-0.1 2.28.3-1 2.28.8-1 |
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Reference Links
- http://www.securityfocus.com/bid/103055
- https://github.com/ARMmbed/mbedtls/blob/master/ChangeLog
- https://github.com/ARMmbed/mbedtls/commit/83c9f495ffe70c7dd280b41fdfd4881485a3bc28
- https://security.gentoo.org/glsa/201804-19
- https://usn.ubuntu.com/4267-1/
- https://www.debian.org/security/2018/dsa-4138
- https://www.debian.org/security/2018/dsa-4147
- https://launchpad.net/bugs/cve/CVE-2017-18187
- https://security-tracker.debian.org/tracker/CVE-2017-18187
- https://ubuntu.com/security/notices/USN-4267-1
- https://www.cve.org/CVERecord?id=CVE-2017-18187
- https://nvd.nist.gov/vuln/detail/CVE-2017-18187
- https://ubuntu.com/security/CVE-2017-18187
Frequently Asked Questions
What is CVE-2017-18187?
CVE-2017-18187 is a vulnerability in ARM mbed TLS before 2.7.0 that allows a bounds-check bypass through an integer overflow in PSK identity parsing.
What is the severity of CVE-2017-18187?
CVE-2017-18187 has a severity level of 9.8, which is considered critical.
How does CVE-2017-18187 impact ARM mbed TLS?
CVE-2017-18187 affects ARM mbed TLS versions before 2.7.0.
How can I fix CVE-2017-18187?
To fix CVE-2017-18187, you should upgrade to ARM mbed TLS version 2.7.0 or later.
Where can I find more information about CVE-2017-18187?
You can find more information about CVE-2017-18187 on the SecurityFocus website and the ARM mbed TLS GitHub repository.
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