Ubuntu LTS / 24.04 LTS / 26.04 LTS / Pro Realtime LTS / Pro Realtime 22.0424.04 LTS：PHP 漏洞 （USN-8743-1）22.04
critical Nessus 插件 ID 344783
语言：
简介
远程 Ubuntu 主机缺少一个或多个安全更新。描述
远程 Ubuntu 22.04 LTS / LTS / 24.04 LTS / 26.04 Pro Realtime LTS / Pro Realtime 22.0424.04 LTS 主机上存在安装的程序包，该程序包受到公告中提及的 USN-8743-1 多个漏洞的影响。已发现 PHP 未正确处理 PostgreSQL 扩展中的反斜线转义。攻击者可利用此问题执行 SQL 注入攻击。（CVE-2026-17543）
已发现 PHP 未正确处理 bccomp（） 函数的某些输入。攻击者可利用此问题造成越界写入，从而导致拒绝服务或可能执行任意代码。此问题仅影响 Ubuntu 26.04 LTS。(CVE-2026-17544)
已发现 PHP 未正确处理 phar 存档中的循环符号链接。攻击者可利用此问题造成不受限制的递归，从而导致拒绝服务。（CVE-2026-7260）
Tenable 已直接从 Ubuntu 安全公告中提取上述描述块。
请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。
解决方案
更新受影响的程序包。另见
插件详情
严重性: Critical
ID: 344783
文件名: ubuntu_USN-8743-1.nasl
版本: 1.1
类型: Local
代理: unix
发布时间: 2026/9/11
最近更新时间: 2026/9/11
支持的传感器: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
风险信息
VPR
风险因素: Medium
分数: 6.9
百分位: 96.62
CVSS v2
风险因素: Critical
基本分数: 10
时间分数: 7.8
矢量: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS 分数来源: CVE-2026-17544
CVSS v3
风险因素: Critical
基本分数: 9.8
时间分数: 8.8
矢量: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
时间矢量: CVSS:3.0/E:P/RL:O/RC:C
CVSS v4
风险因素: Critical
Base Score: 9.3
Threat Score: 8.9
Threat Vector: CVSS:4.0/E:P
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
漏洞信息
CPE: cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, cpe:/o:canonical:ubuntu_linux:pro:-:lts, p-cpe:/a:canonical:ubuntu_linux:libapache2-mod-php7.4, p-cpe:/a:canonical:ubuntu_linux:libapache2-mod-php8.0, p-cpe:/a:canonical:ubuntu_linux:libapache2-mod-php8.1, p-cpe:/a:canonical:ubuntu_linux:libapache2-mod-php8.3, p-cpe:/a:canonical:ubuntu_linux:libapache2-mod-php8.5, p-cpe:/a:canonical:ubuntu_linux:libphp8.1-embed, p-cpe:/a:canonical:ubuntu_linux:libphp8.3-embed, p-cpe:/a:canonical:ubuntu_linux:libphp8.5-embed, p-cpe:/a:canonical:ubuntu_linux:php8.1-bcmath, p-cpe:/a:canonical:ubuntu_linux:php8.1-bz2, p-cpe:/a:canonical:ubuntu_linux:php8.1-cgi, p-cpe:/a:canonical:ubuntu_linux:php8.1-cli, p-cpe:/a:canonical:ubuntu_linux:php8.1-common, p-cpe:/a:canonical:ubuntu_linux:php8.1-curl, p-cpe:/a:canonical:ubuntu_linux:php8.1-dba, p-cpe:/a:canonical:ubuntu_linux:php8.1-enchant, p-cpe:/a:canonical:ubuntu_linux:php8.1-fpm, p-cpe:/a:canonical:ubuntu_linux:php8.1-gd, p-cpe:/a:canonical:ubuntu_linux:php8.1-gmp, p-cpe:/a:canonical:ubuntu_linux:php8.1-imap, p-cpe:/a:canonical:ubuntu_linux:php8.1-interbase, p-cpe:/a:canonical:ubuntu_linux:php8.1-intl, p-cpe:/a:canonical:ubuntu_linux:php8.1-ldap, p-cpe:/a:canonical:ubuntu_linux:php8.1-mbstring, p-cpe:/a:canonical:ubuntu_linux:php8.1-mysql, p-cpe:/a:canonical:ubuntu_linux:php8.1-odbc, p-cpe:/a:canonical:ubuntu_linux:php8.1-opcache, p-cpe:/a:canonical:ubuntu_linux:php8.1-pgsql, p-cpe:/a:canonical:ubuntu_linux:php8.1-phpdbg, p-cpe:/a:canonical:ubuntu_linux:php8.1-pspell, p-cpe:/a:canonical:ubuntu_linux:php8.1-readline, p-cpe:/a:canonical:ubuntu_linux:php8.1-snmp, p-cpe:/a:canonical:ubuntu_linux:php8.1-soap, p-cpe:/a:canonical:ubuntu_linux:php8.1-sqlite3, p-cpe:/a:canonical:ubuntu_linux:php8.1-sybase, p-cpe:/a:canonical:ubuntu_linux:php8.1-tidy, p-cpe:/a:canonical:ubuntu_linux:php8.1-xml, p-cpe:/a:canonical:ubuntu_linux:php8.1-xsl, p-cpe:/a:canonical:ubuntu_linux:php8.1-zip, p-cpe:/a:canonical:ubuntu_linux:php8.1, p-cpe:/a:canonical:ubuntu_linux:php8.3-bcmath, p-cpe:/a:canonical:ubuntu_linux:php8.3-bz2, p-cpe:/a:canonical:ubuntu_linux:php8.3-cgi, p-cpe:/a:canonical:ubuntu_linux:php8.3-cli, p-cpe:/a:canonical:ubuntu_linux:php8.3-common, p-cpe:/a:canonical:ubuntu_linux:php8.3-curl, p-cpe:/a:canonical:ubuntu_linux:php8.3-dba, p-cpe:/a:canonical:ubuntu_linux:php8.3-enchant, p-cpe:/a:canonical:ubuntu_linux:php8.3-fpm, p-cpe:/a:canonical:ubuntu_linux:php8.3-gd, p-cpe:/a:canonical:ubuntu_linux:php8.3-gmp, p-cpe:/a:canonical:ubuntu_linux:php8.3-imap, p-cpe:/a:canonical:ubuntu_linux:php8.3-interbase, p-cpe:/a:canonical:ubuntu_linux:php8.3-intl, p-cpe:/a:canonical:ubuntu_linux:php8.3-ldap, p-cpe:/a:canonical:ubuntu_linux:php8.3-mbstring, p-cpe:/a:canonical:ubuntu_linux:php8.3-mysql, p-cpe:/a:canonical:ubuntu_linux:php8.3-odbc, p-cpe:/a:canonical:ubuntu_linux:php8.3-opcache, p-cpe:/a:canonical:ubuntu_linux:php8.3-pgsql, p-cpe:/a:canonical:ubuntu_linux:php8.3-phpdbg, p-cpe:/a:canonical:ubuntu_linux:php8.3-pspell, p-cpe:/a:canonical:ubuntu_linux:php8.3-readline, p-cpe:/a:canonical:ubuntu_linux:php8.3-snmp, p-cpe:/a:canonical:ubuntu_linux:php8.3-soap, p-cpe:/a:canonical:ubuntu_linux:php8.3-sqlite3, p-cpe:/a:canonical:ubuntu_linux:php8.3-sybase, p-cpe:/a:canonical:ubuntu_linux:php8.3-tidy, p-cpe:/a:canonical:ubuntu_linux:php8.3-xml, p-cpe:/a:canonical:ubuntu_linux:php8.3-xsl, p-cpe:/a:canonical:ubuntu_linux:php8.3-zip, p-cpe:/a:canonical:ubuntu_linux:php8.3, p-cpe:/a:canonical:ubuntu_linux:php8.5-bcmath, p-cpe:/a:canonical:ubuntu_linux:php8.5-bz2, p-cpe:/a:canonical:ubuntu_linux:php8.5-cgi, p-cpe:/a:canonical:ubuntu_linux:php8.5-cli, p-cpe:/a:canonical:ubuntu_linux:php8.5-common, p-cpe:/a:canonical:ubuntu_linux:php8.5-curl, p-cpe:/a:canonical:ubuntu_linux:php8.5-dba, p-cpe:/a:canonical:ubuntu_linux:php8.5-enchant, p-cpe:/a:canonical:ubuntu_linux:php8.5-fpm, p-cpe:/a:canonical:ubuntu_linux:php8.5-gd, p-cpe:/a:canonical:ubuntu_linux:php8.5-gmp, p-cpe:/a:canonical:ubuntu_linux:php8.5-interbase, p-cpe:/a:canonical:ubuntu_linux:php8.5-intl, p-cpe:/a:canonical:ubuntu_linux:php8.5-ldap, p-cpe:/a:canonical:ubuntu_linux:php8.5-litespeed, p-cpe:/a:canonical:ubuntu_linux:php8.5-mbstring, p-cpe:/a:canonical:ubuntu_linux:php8.5-mysql, p-cpe:/a:canonical:ubuntu_linux:php8.5-odbc, p-cpe:/a:canonical:ubuntu_linux:php8.5-pgsql, p-cpe:/a:canonical:ubuntu_linux:php8.5-phpdbg, p-cpe:/a:canonical:ubuntu_linux:php8.5-readline, p-cpe:/a:canonical:ubuntu_linux:php8.5-snmp, p-cpe:/a:canonical:ubuntu_linux:php8.5-soap, p-cpe:/a:canonical:ubuntu_linux:php8.5-sqlite3, p-cpe:/a:canonical:ubuntu_linux:php8.5-sybase, p-cpe:/a:canonical:ubuntu_linux:php8.5-tidy, p-cpe:/a:canonical:ubuntu_linux:php8.5-xml, p-cpe:/a:canonical:ubuntu_linux:php8.5-xsl, p-cpe:/a:canonical:ubuntu_linux:php8.5-zip, p-cpe:/a:canonical:ubuntu_linux:php8.5
必需的 KB 项: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release
可利用: true
易利用性: Exploits are available
补丁发布日期: 2026/9/10
漏洞发布日期: 2026/7/28
参考资料信息
CVE: CVE-2026-17543, CVE-2026-17544, CVE-2026-7260
USN: 8743-1