Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: drm/virtio: bound EDID block reads to the response buffer virtio_get_edid_block() validates the read offset only against the device-supplied resp->size field, never against the fixed-size resp->edid array. The EDID block index is driven by the device-supplied extension count, so a malicious virtio-gpu backend can advertise a large size together with a high block count and read far past the array into adjacent kernel memory, which is then surfaced in the parsed EDID (an out-of-bounds read / info leak). Also reject any read whose end exceeds the size of the edid array. Conforming EDID responses stay within the array and are unaffected.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected b4b01b4995fb15b55a2d067eb405917f5ab32709 before 65ce911f341ad8ff0c08922eff5bb6db75666eb0; affected b4b01b4995fb15b55a2d067eb405917f5ab32709 before 64bedd2758eccbc74d39f7006a7ec16fa39dc901; affected b4b01b4995fb15b55a2d067eb405917f5ab32709 before 3f506a85a905b080cadc029a1651a310479090a6; affected b4b01b4995fb15b55a2d067eb405917f5ab32709 before 9fc2a017c5d597937e0c28b9a9669844aa796c42; affected b4b01b4995fb15b55a2d067eb405917f5ab32709 before 2757e6e803092cf0aeaf4b735e16b5d3bdc705c5; affected b4b01b4995fb15b55a2d067eb405917f5ab32709 before 35be0e2c6862abcd5e5f5445261f1fd910d4a9b4; affected b4b01b4995fb15b55a2d067eb405917f5ab32709 before 375c1934ef0196d3b6d3a1eae3232bef8dae7bf7; affected b4b01b4995fb15b55a2d067eb405917f5ab32709 before 4e1a53892ba7f8a3e1da6bfc53c83ae7c812dccd |
| Linux / Linux | affected 5.0; unaffected 0 before 5.0; unaffected 5.10.266 through 5.10.*; unaffected 5.15.217 through 5.15.*; unaffected 6.1.183 through 6.1.*; unaffected 6.6.148 through 6.6.*; unaffected 6.12.101 through 6.12.*; unaffected 6.18.42 through 6.18.*; unaffected 7.1.6 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/65ce911f341ad8ff0c08922eff5bb6db75666eb0
- https://git.kernel.org/stable/c/64bedd2758eccbc74d39f7006a7ec16fa39dc901
- https://git.kernel.org/stable/c/3f506a85a905b080cadc029a1651a310479090a6
- https://git.kernel.org/stable/c/9fc2a017c5d597937e0c28b9a9669844aa796c42
- https://git.kernel.org/stable/c/2757e6e803092cf0aeaf4b735e16b5d3bdc705c5
- https://git.kernel.org/stable/c/35be0e2c6862abcd5e5f5445261f1fd910d4a9b4
- https://git.kernel.org/stable/c/375c1934ef0196d3b6d3a1eae3232bef8dae7bf7
- https://git.kernel.org/stable/c/4e1a53892ba7f8a3e1da6bfc53c83ae7c812dccd
ADP enrichment
No English description supplied.
No references supplied.