CVE-2018-9988
HIGHCVSS 7.5/10EPSS 2.09%
Last modified
CVE-2018-9988 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in ssl_parse_server_key_exchange() that could cause a crash on invalid input.. EPSS estimates a 2.09% chance of exploitation in the next 30 days.
Description
ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in ssl_parse_server_key_exchange() that could cause a crash on invalid input.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Arm | Mbed Tls | < 2.1.11 | — |
| Arm | Mbed Tls | >= 2.7.0, < 2.7.2 | — |
| Trustedfirmware | Mbed Tls | 2.8.0 | Rc1 |
| Debian | Debian Linux | 8.0 | — |
| Debian | Debian Linux | 9.0 | — |
References
- https://github.com/ARMmbed/mbedtls/commit/027f84c69f4ef30c0693832a6c396ef19e563ca1Patch, Third Party Advisory
- https://github.com/ARMmbed/mbedtls/commit/a1098f81c252b317ad34ea978aea2bc47760b215Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00029.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/11/msg00021.htmlMailing List, Third Party Advisory
- https://tls.mbed.org/tech-updates/releases/mbedtls-2.8.0-2.7.2-and-2.1.11-releasedRelease Notes, Vendor Advisory
- https://github.com/ARMmbed/mbedtls/commit/027f84c69f4ef30c0693832a6c396ef19e563ca1Patch, Third Party Advisory
- https://github.com/ARMmbed/mbedtls/commit/a1098f81c252b317ad34ea978aea2bc47760b215Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00029.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/11/msg00021.htmlMailing List, Third Party Advisory
- https://tls.mbed.org/tech-updates/releases/mbedtls-2.8.0-2.7.2-and-2.1.11-releasedRelease Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-9988?
ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in ssl_parse_server_key_exchange() that could cause a crash on invalid input.
How severe is CVE-2018-9988?
CVE-2018-9988 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.09% probability of exploitation in the next 30 days.
How do I fix CVE-2018-9988?
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.
Are you affected by CVE-2018-9988?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST