Linux Distros 未修补的漏洞:CVE-2026-75803

critical Nessus 插件 ID 338398

简介

Linux/Unix 主机上安装的一个或多个程序包存在漏洞,但供应商表示不会修补此漏洞。

描述

Linux/Unix 主机中安装的一个或多个程序包受到一个漏洞影响,而供应商没有提供补丁程序。

- 问题摘要:通过调用 EVP_Cipher() 函数完成操作时,ChaCha20-Poly1305 和空密文的 AES-OCB 解密可在未验证提供的认证标签的情况下报告成功。影响汇总:在空密文上调用 EVP_Cipher() 并预期调用检查 AEAD 标签的应用程序可能接受伪造的消息。CWE:CWE-354(不当验证完整性检查值) 描述:AEAD 密码的 EVP_Cipher() API 调用行为类似一次性加密和解密调用。它还会在解密操作后验证 AEAD 标签。不过,对于 AES-OCB 和 ChaCha20-Poly1305 密码,如果将空密文传递到函数,就会跳过 AEAD 标签验证。此函数的调用者可能认为成功返回表示这些密码的 AEAD 标签有效,即使在此情况下尚未真正验证该标签。FIPS 影响:
不,4.0、3.6、3.5、3.4和3.0中的 FIPS 模块不受此 CVE 影响,因为受影响的算法不是 FIPS 认证的,因此未在 FIPS 模块中实现。(CVE-2026-75803)

请注意,Nessus 依赖供应商报告的程序包是否存在进行判断。

解决方案

目前尚未有任何已知的解决方案。

另见

https://access.redhat.com/security/cve/cve-2026-75803

https://ubuntu.com/security/CVE-2026-75803

插件详情

严重性: Critical

ID: 338398

文件名: unpatched_CVE_2026_75803.nasl

版本: 1.14

类型: Local

代理: unix

系列: Misc.

发布时间: 2026/8/20

最近更新时间: 2026/10/17

支持的传感器: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

风险信息

VPR

风险因素: Medium

分数: 4.3

百分位: 53.43

CVSS v2

风险因素: Medium

基本分数: 6.4

时间分数: 5.4

矢量: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

CVSS 分数来源: CVE-2026-75803

CVSS v3

风险因素: Critical

基本分数: 9.1

时间分数: 8.3

矢量: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

时间矢量: CVSS:3.0/E:U/RL:U/RC:C

漏洞信息

CPE: cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:canonical:ubuntu_linux:edk2-hwe, p-cpe:/a:canonical:ubuntu_linux:edk2, p-cpe:/a:canonical:ubuntu_linux:nodejs, p-cpe:/a:redhat:enterprise_linux:389-ds-base-bdb, p-cpe:/a:redhat:enterprise_linux:389-ds-base-devel, p-cpe:/a:redhat:enterprise_linux:389-ds-base-libs, p-cpe:/a:redhat:enterprise_linux:389-ds-base-snmp, p-cpe:/a:redhat:enterprise_linux:389-ds-base, p-cpe:/a:redhat:enterprise_linux:afterburn-dracut, p-cpe:/a:redhat:enterprise_linux:afterburn, p-cpe:/a:redhat:enterprise_linux:bootc, p-cpe:/a:redhat:enterprise_linux:bootupd, p-cpe:/a:redhat:enterprise_linux:clevis-pin-tpm2, p-cpe:/a:redhat:enterprise_linux:compat-openssl11, p-cpe:/a:redhat:enterprise_linux:ctdb, p-cpe:/a:redhat:enterprise_linux:edk2-aarch64, p-cpe:/a:redhat:enterprise_linux:edk2-ovmf, p-cpe:/a:redhat:enterprise_linux:edk2-tools-doc, p-cpe:/a:redhat:enterprise_linux:edk2-tools, p-cpe:/a:redhat:enterprise_linux:edk2, p-cpe:/a:redhat:enterprise_linux:fdo-admin-cli, p-cpe:/a:redhat:enterprise_linux:fdo-client, p-cpe:/a:redhat:enterprise_linux:fdo-init, p-cpe:/a:redhat:enterprise_linux:fdo-manufacturing-server, p-cpe:/a:redhat:enterprise_linux:fdo-owner-cli, p-cpe:/a:redhat:enterprise_linux:fdo-owner-onboarding-server, p-cpe:/a:redhat:enterprise_linux:fdo-rendezvous-server, p-cpe:/a:redhat:enterprise_linux:firefox-x11, p-cpe:/a:redhat:enterprise_linux:firefox, p-cpe:/a:redhat:enterprise_linux:glx-utils, p-cpe:/a:redhat:enterprise_linux:goose, p-cpe:/a:redhat:enterprise_linux:keylime-agent-rust-common, p-cpe:/a:redhat:enterprise_linux:keylime-agent-rust-ima-emulator, p-cpe:/a:redhat:enterprise_linux:keylime-agent-rust-push, p-cpe:/a:redhat:enterprise_linux:keylime-agent-rust, p-cpe:/a:redhat:enterprise_linux:ldb-tools, p-cpe:/a:redhat:enterprise_linux:libldb-devel, p-cpe:/a:redhat:enterprise_linux:libldb, p-cpe:/a:redhat:enterprise_linux:libnetapi-devel, p-cpe:/a:redhat:enterprise_linux:libnetapi, p-cpe:/a:redhat:enterprise_linux:libsmbclient-devel, p-cpe:/a:redhat:enterprise_linux:libsmbclient, p-cpe:/a:redhat:enterprise_linux:libwbclient-devel, p-cpe:/a:redhat:enterprise_linux:libwbclient, p-cpe:/a:redhat:enterprise_linux:mesa-demos, p-cpe:/a:redhat:enterprise_linux:mesa-dri-drivers, p-cpe:/a:redhat:enterprise_linux:mesa-filesystem, p-cpe:/a:redhat:enterprise_linux:mesa-libegl-devel, p-cpe:/a:redhat:enterprise_linux:mesa-libegl, p-cpe:/a:redhat:enterprise_linux:mesa-libgbm-devel, p-cpe:/a:redhat:enterprise_linux:mesa-libgbm, p-cpe:/a:redhat:enterprise_linux:mesa-libgl-devel, p-cpe:/a:redhat:enterprise_linux:mesa-libgl, p-cpe:/a:redhat:enterprise_linux:mesa-libglapi, p-cpe:/a:redhat:enterprise_linux:mesa-libglu-devel, p-cpe:/a:redhat:enterprise_linux:mesa-libglu, p-cpe:/a:redhat:enterprise_linux:mesa-libosmesa-devel, p-cpe:/a:redhat:enterprise_linux:mesa-libosmesa, p-cpe:/a:redhat:enterprise_linux:mesa-libxatracker, p-cpe:/a:redhat:enterprise_linux:mesa-vulkan-drivers, p-cpe:/a:redhat:enterprise_linux:mokutil, p-cpe:/a:redhat:enterprise_linux:openssl-devel, p-cpe:/a:redhat:enterprise_linux:openssl-libs, p-cpe:/a:redhat:enterprise_linux:openssl-perl, p-cpe:/a:redhat:enterprise_linux:openssl, p-cpe:/a:redhat:enterprise_linux:python3-ldb, p-cpe:/a:redhat:enterprise_linux:python3-lib389, p-cpe:/a:redhat:enterprise_linux:python3-samba-dc, p-cpe:/a:redhat:enterprise_linux:python3-samba-devel, p-cpe:/a:redhat:enterprise_linux:python3-samba-test, p-cpe:/a:redhat:enterprise_linux:python3-samba, p-cpe:/a:redhat:enterprise_linux:python3.12-cryptography, p-cpe:/a:redhat:enterprise_linux:python3.14-cryptography, p-cpe:/a:redhat:enterprise_linux:rpm-ostree-libs, p-cpe:/a:redhat:enterprise_linux:rpm-ostree, p-cpe:/a:redhat:enterprise_linux:rpm-sequoia-devel, p-cpe:/a:redhat:enterprise_linux:rpm-sequoia, p-cpe:/a:redhat:enterprise_linux:ruby-bundled-gems, p-cpe:/a:redhat:enterprise_linux:ruby-default-gems, p-cpe:/a:redhat:enterprise_linux:ruby-devel, p-cpe:/a:redhat:enterprise_linux:ruby-doc, p-cpe:/a:redhat:enterprise_linux:ruby-libs, p-cpe:/a:redhat:enterprise_linux:ruby4.0-devel, p-cpe:/a:redhat:enterprise_linux:ruby4.0-doc, p-cpe:/a:redhat:enterprise_linux:ruby4.0-rubygem-mysql2, p-cpe:/a:redhat:enterprise_linux:ruby4.0-rubygem-pg, p-cpe:/a:redhat:enterprise_linux:ruby4.0, p-cpe:/a:redhat:enterprise_linux:ruby, p-cpe:/a:redhat:enterprise_linux:rubygem-bigdecimal, p-cpe:/a:redhat:enterprise_linux:rubygem-bundler, p-cpe:/a:redhat:enterprise_linux:rubygem-io-console, p-cpe:/a:redhat:enterprise_linux:rubygem-irb, p-cpe:/a:redhat:enterprise_linux:rubygem-json, p-cpe:/a:redhat:enterprise_linux:rubygem-minitest, p-cpe:/a:redhat:enterprise_linux:rubygem-power_assert, p-cpe:/a:redhat:enterprise_linux:rubygem-psych, p-cpe:/a:redhat:enterprise_linux:rubygem-racc, p-cpe:/a:redhat:enterprise_linux:rubygem-rake, p-cpe:/a:redhat:enterprise_linux:rubygem-rbs, p-cpe:/a:redhat:enterprise_linux:rubygem-rdoc, p-cpe:/a:redhat:enterprise_linux:rubygem-rexml, p-cpe:/a:redhat:enterprise_linux:rubygem-rss, p-cpe:/a:redhat:enterprise_linux:rubygem-test-unit, p-cpe:/a:redhat:enterprise_linux:rubygem-typeprof, p-cpe:/a:redhat:enterprise_linux:rubygems-devel, p-cpe:/a:redhat:enterprise_linux:rubygems, p-cpe:/a:redhat:enterprise_linux:rust-bootupd, p-cpe:/a:redhat:enterprise_linux:rust-rpm-sequoia, p-cpe:/a:redhat:enterprise_linux:rust-sequoia-sq, p-cpe:/a:redhat:enterprise_linux:rust-sequoia-sqv, p-cpe:/a:redhat:enterprise_linux:s390utils-base, p-cpe:/a:redhat:enterprise_linux:s390utils-chreipl-fcp-mpath, p-cpe:/a:redhat:enterprise_linux:s390utils-cmsfs-fuse, p-cpe:/a:redhat:enterprise_linux:s390utils-core, p-cpe:/a:redhat:enterprise_linux:s390utils-cpacfstatsd, p-cpe:/a:redhat:enterprise_linux:s390utils-cpuplugd, p-cpe:/a:redhat:enterprise_linux:s390utils-devel, p-cpe:/a:redhat:enterprise_linux:s390utils-hmcdrvfs, p-cpe:/a:redhat:enterprise_linux:s390utils-iucvterm, p-cpe:/a:redhat:enterprise_linux:s390utils-mon_statd, p-cpe:/a:redhat:enterprise_linux:s390utils-osasnmpd, p-cpe:/a:redhat:enterprise_linux:s390utils-se-data, p-cpe:/a:redhat:enterprise_linux:s390utils-zdsfs, p-cpe:/a:redhat:enterprise_linux:s390utils-ziomon, p-cpe:/a:redhat:enterprise_linux:s390utils, p-cpe:/a:redhat:enterprise_linux:samba-client-libs, p-cpe:/a:redhat:enterprise_linux:samba-client, p-cpe:/a:redhat:enterprise_linux:samba-common-libs, p-cpe:/a:redhat:enterprise_linux:samba-common-tools, p-cpe:/a:redhat:enterprise_linux:samba-common, p-cpe:/a:redhat:enterprise_linux:samba-dc-libs, p-cpe:/a:redhat:enterprise_linux:samba-dcerpc, p-cpe:/a:redhat:enterprise_linux:samba-devel, p-cpe:/a:redhat:enterprise_linux:samba-gpupdate, p-cpe:/a:redhat:enterprise_linux:samba-krb5-printing, p-cpe:/a:redhat:enterprise_linux:samba-ldb-ldap-modules, p-cpe:/a:redhat:enterprise_linux:samba-libs, p-cpe:/a:redhat:enterprise_linux:samba-pidl, p-cpe:/a:redhat:enterprise_linux:samba-test-libs, p-cpe:/a:redhat:enterprise_linux:samba-test, p-cpe:/a:redhat:enterprise_linux:samba-tools, p-cpe:/a:redhat:enterprise_linux:samba-usershares, p-cpe:/a:redhat:enterprise_linux:samba-vfs-iouring, p-cpe:/a:redhat:enterprise_linux:samba-winbind-clients, p-cpe:/a:redhat:enterprise_linux:samba-winbind-krb5-locator, p-cpe:/a:redhat:enterprise_linux:samba-winbind-modules, p-cpe:/a:redhat:enterprise_linux:samba-winbind, p-cpe:/a:redhat:enterprise_linux:samba-winexe, p-cpe:/a:redhat:enterprise_linux:samba, p-cpe:/a:redhat:enterprise_linux:sequoia-sq, p-cpe:/a:redhat:enterprise_linux:sequoia-sqv, p-cpe:/a:redhat:enterprise_linux:sevctl, p-cpe:/a:redhat:enterprise_linux:shim-aa64, p-cpe:/a:redhat:enterprise_linux:shim-unsigned-aarch64, p-cpe:/a:redhat:enterprise_linux:shim-unsigned-x64, p-cpe:/a:redhat:enterprise_linux:shim-x64, p-cpe:/a:redhat:enterprise_linux:shim, p-cpe:/a:redhat:enterprise_linux:system-reinstall-bootc, p-cpe:/a:redhat:enterprise_linux:trustee-guest-components, p-cpe:/a:redhat:enterprise_linux:trustee-kbs, p-cpe:/a:redhat:enterprise_linux:virt-firmware-rs

必需的 KB 项: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

易利用性: No known exploits are available

参考资料信息

CVE: CVE-2026-75803