跳转到帖子

Amazon Linux 2023: CVE-2023-2283: Medium priority package update for libssh

recommended_posts

发布于
  • Members

Amazon Linux 2023: CVE-2023-2283: Medium priority package update for libssh

Severity
4
CVSS
(AV:N/AC:H/Au:N/C:P/I:P/A:N)
Published
05/05/2023
Created
02/14/2025
Added
02/14/2025
Modified
02/14/2025

Description

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.

Solution(s)

  • amazon-linux-2023-upgrade-libssh
  • amazon-linux-2023-upgrade-libssh-config
  • amazon-linux-2023-upgrade-libssh-debuginfo
  • amazon-linux-2023-upgrade-libssh-debugsource
  • amazon-linux-2023-upgrade-libssh-devel

References

  • https://attackerkb.com/topics/cve-2023-2283
  • CVE - 2023-2283
  • https://alas.aws.amazon.com/AL2023/ALAS-2023-186.html
  • 查看数 698
  • 已创建
  • 最后回复

参与讨论

你可立刻发布并稍后注册。 如果你有帐户,立刻登录发布帖子。
注意:你的帖子需要版主批准后才能看到。

游客
回帖…