发布时间: 2023年2月24日
修改时间: 2024年10月31日
GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, memory corruption can be triggered when decoding UTF16 strings. The variable `outlen` was not initialized and could cause writing a zero to an arbitrary place in memory if `ntlm_str_convert()` were to fail, which would leave `outlen` uninitialized. This can lead to a denial of service if the write hits unmapped memory or randomly corrupts a byte in the application memory space. This vulnerability can trigger an out-of-bounds write, leading to memory corruption. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point. This issue is fixed in version 1.2.0.
| NVD | openEuler | |
|---|---|---|
| Confidentiality | None | None |
| Attack Vector | Network | Network |
| CVSS评分 | 8.2 | 6.5 |
| Attack Complexity | Low | High |
| Privileges Required | None | None |
| Scope | Unchanged | Unchanged |
| Integrity | Low | Low |
| User Interaction | None | None |
| Availability | High | High |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2023-1112 | gssntlmssp security update | 2023年2月24日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-4A | gssntlmssp | Fixed |
| KY3.4-5A | gssntlmssp | Fixed |
| KY3.5.1 | gssntlmssp | Fixed |
| KY3.5.2 | gssntlmssp | Fixed |
