CVE-2017-17806
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- CVE-2017-17806
CVE Details
| Release Date: | 2017-12-20 |
Description
The HMAC implementation (crypto/hmac.c) in the Linux kernel before 4.14.8 does not validate that the underlying cryptographic hash algorithm is unkeyed, allowing a local attacker able to use the AF_ALG-based hash interface (CONFIG_CRYPTO_USER_API_HASH) and the SHA-3 hash algorithm (CONFIG_CRYPTO_SHA3) to cause a kernel stack buffer overflow by executing a crafted sequence of system calls that encounter a missing SHA-3 initialization.
See more information about CVE-2017-17806 from MITRE CVE dictionary and NIST NVD
CVSS v3.0 metrics
NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.
| Base Score: | 7.8 | Base Metrics: | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Access Vector: | Local network | Attack Complexity: | Low |
| Privileges Required: | Low | User Interaction: | None |
| Scope: | Unchanged | Confidentiality Impact: | High |
| Integrity Impact: | High | Availability Impact: | High |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 5 (kernel-uek) | ELSA-2018-4301 | 2018-12-09 |
| Oracle Linux version 6 (dtrace-modules-3.8.13-118.28.1.el6uek) | ELSA-2018-4300 | 2018-12-06 |
| Oracle Linux version 6 (dtrace-modules-3.8.13-118.29.1.el6uek) | ELSA-2019-4316 | 2019-01-04 |
| Oracle Linux version 6 (kernel-uek) | ELSA-2018-4299 | 2018-12-06 |
| Oracle Linux version 6 (kernel-uek) | ELSA-2018-4300 | 2018-12-06 |
| Oracle Linux version 6 (kernel-uek) | ELSA-2018-4301 | 2018-12-09 |
| Oracle Linux version 6 (kernel-uek) | ELSA-2019-4316 | 2019-01-04 |
| Oracle Linux version 7 (dtrace-modules-3.8.13-118.28.1.el7uek) | ELSA-2018-4300 | 2018-12-06 |
| Oracle Linux version 7 (dtrace-modules-3.8.13-118.29.1.el7uek) | ELSA-2019-4316 | 2019-01-04 |
| Oracle Linux version 7 (kernel-uek) | ELSA-2018-4299 | 2018-12-06 |
| Oracle Linux version 7 (kernel-uek) | ELSA-2018-4300 | 2018-12-06 |
| Oracle Linux version 7 (kernel-uek) | ELSA-2019-4316 | 2019-01-04 |
| Oracle VM version 3.4 (kernel-uek) | OVMSA-2018-0286 | 2018-12-07 |
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