摘要:
libspf2 security update
安全等级: High
公告ID: KylinSec-SA-2024-5013
发布日期: 2025年3月6日
关联CVE: CVE-2023-42118
libspf2 is an implementation of the SPF (Sender Policy Framework) specification as found at: http://www.ietf.org/internet-drafts/draft-mengwong-spf-00.txt SPF allows email systems to check SPF DNS records and make sure that an email is authorized by the administrator of the domain name that it is coming from. This prevents email forgery, commonly used by spammers, scammers, and email viruses/worms.
Security Fix(es):
Exim libspf2 Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Exim libspf2. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the parsing of SPF macros. When parsing SPF macros, the process does not properly validate user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the service account.
. Was ZDI-CAN-17578.(CVE-2023-42118)
| cve名称 | 产品 | 组件 | 是否受影响 |
|---|---|---|---|
| CVE-2023-42118 | V6 | libspf2 | Fixed |
| 软件名称 | 架构 | 版本号 |
|---|---|---|
| libspf2-apidocs | noarch | 1.2.11-2.ks6 |
| libspf2 | x86_64 | 1.2.11-2.ks6 |
| libspf2-devel | x86_64 | 1.2.11-2.ks6 |
| libspf2-progs | x86_64 | 1.2.11-2.ks6 |
| perl-Mail-SPF_XS | x86_64 | 1.2.11-2.ks6 |
| libspf2 | aarch64 | 1.2.11-2.ks6 |
| libspf2-devel | aarch64 | 1.2.11-2.ks6 |
| libspf2-progs | aarch64 | 1.2.11-2.ks6 |
| perl-Mail-SPF_XS | aarch64 | 1.2.11-2.ks6 |
方法一：下载安装包进行升级安装
1、通过下载链接下载需要升级的升级包保存，如 xxx.rpm
2、通过rpm命令升级，如 rpm -Uvh xxx.rpm
方法二：通过软件源进行升级安装
1、保持能够连接上互联网
2、通过yum命令升级指定的包，如 yum install 包名
