Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: scsi: libiscsi: Fix stale-data leak into the SCSI sense buffer iscsi_scsi_cmd_rsp() copies the sense data of a SCSI Response from the target-supplied data segment. The segment carries a 2-byte sense length followed by the sense bytes, so it must hold 2 + senselen bytes, but the bounds check only requires datalen >= senselen: senselen = get_unaligned_be16(data); if (datalen < senselen) goto invalid_datalen; memcpy(sc->sense_buffer, data + 2, min_t(uint16_t, senselen, SCSI_SENSE_BUFFERSIZE)); A target that returns a SCSI Response whose datalen equals senselen (with senselen <= SCSI_SENSE_BUFFERSIZE) makes the memcpy() from data + 2 read up to two bytes past the received data. Those bytes are stale conn->data contents and end up in the command's sense buffer, which is returned to userspace. Account for the 2-byte sense length prefix in the check.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 7996a778ff8c717cb1a7a294475c59cc8f1e9fb8 before 812f1ae95b22419422972748f173b0916ee4d621; affected 7996a778ff8c717cb1a7a294475c59cc8f1e9fb8 before fef6167e8149896cd81bea333fd51b1c91239149; affected 7996a778ff8c717cb1a7a294475c59cc8f1e9fb8 before baa04572673125e4d5bc309b4077d1cb46cc78d1; affected 7996a778ff8c717cb1a7a294475c59cc8f1e9fb8 before 7567f06abdefb1caf2d836107c4d08c5185c650e; affected 7996a778ff8c717cb1a7a294475c59cc8f1e9fb8 before 60499924faf4ef97e84228c20515218ef121facf; affected 7996a778ff8c717cb1a7a294475c59cc8f1e9fb8 before 3ef209ca0b4b68c75e9a814d90cc916026b5a6ac; affected 7996a778ff8c717cb1a7a294475c59cc8f1e9fb8 before 1f07a897d43c63e6c9458bf77450defef39b5833; affected 7996a778ff8c717cb1a7a294475c59cc8f1e9fb8 before 98b87885de4b7f605533a2860685f5689fce8e82 |
| Linux / Linux | affected 2.6.18; unaffected 0 before 2.6.18; unaffected 5.10.265 through 5.10.*; unaffected 5.15.216 through 5.15.*; unaffected 6.1.183 through 6.1.*; unaffected 6.6.151 through 6.6.*; unaffected 6.12.103 through 6.12.*; unaffected 6.18.44 through 6.18.*; unaffected 7.1.8 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/812f1ae95b22419422972748f173b0916ee4d621
- https://git.kernel.org/stable/c/fef6167e8149896cd81bea333fd51b1c91239149
- https://git.kernel.org/stable/c/baa04572673125e4d5bc309b4077d1cb46cc78d1
- https://git.kernel.org/stable/c/7567f06abdefb1caf2d836107c4d08c5185c650e
- https://git.kernel.org/stable/c/60499924faf4ef97e84228c20515218ef121facf
- https://git.kernel.org/stable/c/3ef209ca0b4b68c75e9a814d90cc916026b5a6ac
- https://git.kernel.org/stable/c/1f07a897d43c63e6c9458bf77450defef39b5833
- https://git.kernel.org/stable/c/98b87885de4b7f605533a2860685f5689fce8e82
ADP enrichment
No English description supplied.
No references supplied.