安全公告/【CVE-2023-2283】
基本信息
漏洞描述
A vulnerability was found in libssh, where the authentication check of the connecting client can be bypassed in the`pki_verify_data_signature` function in memory allocation problems. This issue may happen if there is insufficient memory or the memory usage is limited. The problem is caused by the return value `rc,` which is initialized to SSH_ERROR and later rewritten to save the return value of the function call `pki_key_check_hash_compatible.` The value of the variable is not changed between this point and the cryptographic verification. Therefore any error between them calls `goto error` returning SSH_OK.
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
参考
https://access.redhat.com/security/cve/CVE-2023-2283
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2283
https://nvd.nist.gov/vuln/detail/CVE-2023-2283