CVE-2017-18187
UnknownEPSS 3.17%
Last modified
CVE-2017-18187 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 3.17% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Arm | Mbed Tls | < 2.7.0 |
| Debian | Debian Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
References
- http://www.securityfocus.com/bid/103055Third Party Advisory, VDB Entry
- https://github.com/ARMmbed/mbedtls/blob/master/ChangeLogThird Party Advisory
- https://github.com/ARMmbed/mbedtls/commit/83c9f495ffe70c7dd280b41fdfd4881485a3bc28Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201804-19Third Party Advisory
- https://www.debian.org/security/2018/dsa-4138Third Party Advisory
- https://www.debian.org/security/2018/dsa-4147Third Party Advisory
- http://www.securityfocus.com/bid/103055Third Party Advisory, VDB Entry
- https://github.com/ARMmbed/mbedtls/blob/master/ChangeLogThird Party Advisory
- https://github.com/ARMmbed/mbedtls/commit/83c9f495ffe70c7dd280b41fdfd4881485a3bc28Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201804-19Third Party Advisory
- https://www.debian.org/security/2018/dsa-4138Third Party Advisory
- https://www.debian.org/security/2018/dsa-4147Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2017-18187?
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.
How severe is CVE-2017-18187?
Severity scoring for CVE-2017-18187 is pending analysis. The EPSS model estimates a 3.17% probability of exploitation in the next 30 days.
How do I fix CVE-2017-18187?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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Are you affected by CVE-2017-18187?
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