Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: usb: cdc-acm: Check control transfer buffer size before access If the first fragment is shorter than struct usb_cdc_notification, we can't calculate an expected_size. Log an error and discard the notification instead of reading lengths from memory outside the received data, which can lead to memory corruption when the expected_size decreases between fragments, causing `expected_size - acm->nb_index` to wrap. This issue has been present since the beginning of git history; however, it only leads to memory corruption since commit ea2583529cd1 ("cdc-acm: reassemble fragmented notifications"). A mitigating factor is that acm_ctrl_irq() can only execute after userspace has opened /dev/ttyACM*; but if ModemManager is running, ModemManager will do that automatically depending on the USB device's vendor/product IDs and its other interfaces.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before a4e1ae5c0533964170197e4fb4f33bc8c1db5cd2; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 90dd2f1b7342b9a671a5ea4160f408037b92b118; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 871619c2b78fdfe05afb4e8ba548678687beb812; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 7828e9363ac4d23b02419bf2a45b9f1d9fb35646; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 6abb510251e75f875797d8983a830e6731fa281c; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before f64079bef6a8a7823358c3f352ea29a617844636; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 383d516a0ebc8641372b521c8cb717f0f1834831; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before e563b01208f4d1f609bcab13333b6c0e24ce6a01 |
| Linux / Linux | affected 2.6.12; unaffected 0 before 2.6.12; unaffected 5.4.291 through 5.4.*; unaffected 5.10.235 through 5.10.*; unaffected 5.15.179 through 5.15.*; unaffected 6.1.129 through 6.1.*; unaffected 6.6.79 through 6.6.*; unaffected 6.12.16 through 6.12.*; unaffected 6.13.4 through 6.13.*; unaffected 6.14 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/a4e1ae5c0533964170197e4fb4f33bc8c1db5cd2
- https://git.kernel.org/stable/c/90dd2f1b7342b9a671a5ea4160f408037b92b118
- https://git.kernel.org/stable/c/871619c2b78fdfe05afb4e8ba548678687beb812
- https://git.kernel.org/stable/c/7828e9363ac4d23b02419bf2a45b9f1d9fb35646
- https://git.kernel.org/stable/c/6abb510251e75f875797d8983a830e6731fa281c
- https://git.kernel.org/stable/c/f64079bef6a8a7823358c3f352ea29a617844636
- https://git.kernel.org/stable/c/383d516a0ebc8641372b521c8cb717f0f1834831
- https://git.kernel.org/stable/c/e563b01208f4d1f609bcab13333b6c0e24ce6a01
- https://project-zero.issues.chromium.org/issues/395107243
ADP enrichment
No English description supplied.
No English description supplied.