CVE-2024-36016
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- CVE-2024-36016
CVE Details
| Release Date: | 2024-05-29 |
Description
In the Linux kernel, the following vulnerability has been resolved: tty: n_gsm: fix possible out-of-bounds in gsm0_receive() Assuming the following: - side A configures the n_gsm in basic option mode - side B sends the header of a basic option mode frame with data length 1 - side A switches to advanced option mode - side B sends 2 data bytes which exceeds gsm->len Reason: gsm->len is not used in advanced option mode. - side A switches to basic option mode - side B keeps sending until gsm0_receive() writes past gsm->buf Reason: Neither gsm->state nor gsm->len have been reset after reconfiguration. Fix this by changing gsm->count to gsm->len comparison from equal to less than. Also add upper limit checks against the constant MAX_MRU in gsm0_receive() and gsm1_receive() to harden against memory corruption of gsm->len and gsm->mru. All other checks remain as we still need to limit the data according to the user configuration and actual payload size.
See more information about CVE-2024-36016 from MITRE CVE dictionary and NIST NVD
CVSS Scoring
NOTE: The following CVSS v3.1 metrics and score provided are preliminary and subject to review.
| Base Score: | 6.4 | CVSS Vector: | CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
| Attack Vector: | Adjacent network | Attack Complexity: | High |
| Privileges Required: | High | User Interaction: | None |
| Scope: | Unchanged | Confidentiality Impact: | High |
| Integrity Impact: | High | Availability Impact: | High |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 6 (kernel-uek) | ELSA-2024-12606 | 2024-09-02 |
| Oracle Linux version 7 (kernel-uek) | ELSA-2024-12581 | 2024-08-12 |
| Oracle Linux version 7 (kernel-uek) | ELSA-2024-12606 | 2024-09-02 |
| Oracle Linux version 7 (kernel-uek) | ELSA-2024-12611 | 2024-09-11 |
| Oracle Linux version 7 (kernel-uek-container) | ELSA-2024-12585 | 2024-08-12 |
| Oracle Linux version 8 (kernel) | ELSA-2024-5101 | 2024-08-08 |
| Oracle Linux version 8 (kernel-uek) | ELSA-2024-12581 | 2024-08-12 |
| Oracle Linux version 8 (kernel-uek-container) | ELSA-2024-12584 | 2024-08-12 |
| Oracle Linux version 9 (kernel) | ELSA-2024-6997 | 2024-09-24 |
| Oracle VM version 3 (kernel-uek) | OVMSA-2024-0011 | 2024-09-03 |
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