发布时间: 2023年2月3日
修改时间: 2024年10月31日
A heap overflow bug in ksmbd_decode_ntlmssp_auth_blob in which nt_len can be less than CIFS_ENCPWD_SIZE. This results in a negative blen argument for ksmbd_auth_ntlmv2, where it calls memcpy using blen on memory allocated by kmalloc(blen + CIFS_CRYPTO_KEY_SIZE). Note that CIFS_ENCPWD_SIZE is 16 and CIFS_CRYPTO_KEY_SIZE is 8. We believe this bug can only result in a remote DOS and not privilege escalation nor RCE, as the heap overflow occurs when blen is in range (-8, -1].”Reference:https://securityonline.info/cve-2023-0210-flaw-in-linux-kernel-allows-unauthenticated-remote-dos-attacks/https://www.spinics.net/lists/stable-commits/msg282893.html
| NVD | openEuler | |
|---|---|---|
| Confidentiality | None | None |
| Attack Vector | Network | Network |
| CVSS评分 | 7.5 | 5.9 |
| Attack Complexity | Low | High |
| Privileges Required | None | None |
| Scope | Unchanged | Unchanged |
| Integrity | None | None |
| User Interaction | None | None |
| Availability | High | High |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2023-1055 | kernel security update | 2023年2月3日 |
| KylinSec-SA-2023-2077 | kernel security update | 2023年2月3日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.5.2 | kernel | Fixed |
| KY3.5.1 | kernel | Fixed |
