In the Linux kernel, the following vulnerability has been resolved: rxrpc: reject undecryptable rxkad response tickets rxkad_decrypt_ticket() decrypts the RXKAD response ticket and then parses the buffer as plaintext without checking whether crypto_skcipher_decrypt() succeeded. A malformed RESPONSE can therefore use a non-block-aligned ticket length, make the decrypt operation fail, and still drive the ticket parser with attacker-controlled bytes. Check the decrypt result and abort the connection with RXKADBADTICKET when ticket decryption fails.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
| Attack Vector | NETWORK |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | NONE |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | HIGH |
| Integrity Impact | HIGH |
| Availability Impact | HIGH |
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Type: Secondary
Exploitability Score: 3.9
Impact Score: 5.9
| Source | Type | Description |
|---|---|---|
| [email protected] | Primary |
en
NVD-CWE-noinfo
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd2db219600> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd384a64d00> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd39c52d1c0> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd2d8258540> | Operating System |
| linux | linux_kernel | 2.6.22 | <built-in method update of dict object at 0x7fd2db21b100> | Operating System |
| linux | linux_kernel | 7.0 | <built-in method update of dict object at 0x7fd39c44a180> | Operating System |
| linux | linux_kernel | 7.0 | <built-in method update of dict object at 0x7fd2db21b740> | Operating System |
| linux | linux_kernel | 7.0 | <built-in method update of dict object at 0x7fd3840e40c0> | Operating System |
| linux | linux_kernel | 7.0 | <built-in method update of dict object at 0x7fd31b236400> | Operating System |
| linux | linux_kernel | 7.0 | <built-in method update of dict object at 0x7fd31b236b80> | Operating System |
| linux | linux_kernel | 7.0 | <built-in method update of dict object at 0x7fd31b237ac0> | Operating System |
| linux | linux_kernel | 7.0 | <built-in method update of dict object at 0x7fd31b235540> | Operating System |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:2.6.22:-:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:* |