跳转到帖子

Huawei EulerOS: CVE-2023-28321: curl security update

recommended_posts

发布于
  • Members

Huawei EulerOS: CVE-2023-28321: curl security update

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:N/I:C/A:N)
Published
05/26/2023
Created
01/11/2024
Added
01/10/2024
Modified
01/30/2025

Description

An improper certificate validation vulnerability exists in curl <v8.1.0 in the way it supports matching of wildcard patterns when listed as "Subject Alternative Name" in TLS server certificates. curl can be built to use its own name matching function for TLS rather than one provided by a TLS library. This private wildcard matching function would match IDN (International Domain Name) hosts incorrectly and could as a result accept patterns that otherwise should mismatch. IDN hostnames are converted to puny code before used for certificate checks. Puny coded names always start with `xn--` and should not be allowed to pattern match, but the wildcard check in curl could still check for `x*`, which would match even though the IDN name most likely contained nothing even resembling an `x`.

Solution(s)

  • huawei-euleros-2_0_sp8-upgrade-curl
  • huawei-euleros-2_0_sp8-upgrade-libcurl
  • huawei-euleros-2_0_sp8-upgrade-libcurl-devel

References

  • https://attackerkb.com/topics/cve-2023-28321
  • CVE - 2023-28321
  • EulerOS-SA-2023-3121
  • 查看数 699
  • 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…