安全公告/【CVE-2023-25564】

基本信息

漏洞名称:
受影响操作系统:Asianux
危险等级:高危
影响源码包:gssntlmssp
CVSS评分:8.2
发现日期:2023-05-29
修复版本:gssntlmssp-1.2.0-1

漏洞描述

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.

修复方式

yum update PackageName

漏洞判定

执行命令yum info PackageName获取软件包版本号，版本小于修复版本，则受此漏洞影响，版本大于等于修复版本，则此漏洞已修复

补丁

参考

https://access.redhat.com/security/cve/CVE-2023-25564
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-25564
https://nvd.nist.gov/vuln/detail/CVE-2023-25564