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云安全日报210409：红帽Nettle密码库发现越界内存访问漏洞，需要尽快升级

时间：2026-11-15 来源：网络整理 编辑：热点

核心提示

谷歌搜索留痕【tg:seogoogle987】

Nettle是一种密码库，旨在轻松适应几乎所有环境：在面向对象语言（例如C ++，Python或Pike）的密码工具包中云安，在LSH或GNUPG之类的应用程序中，甚至在内核空间中。

4月8日,RedHat(红帽)发布了安全更新，修复了Nettle密全日码库中发现的一些重要漏洞。以下是漏洞详情：

漏洞详情

来源：https://access.redhat.com/errata/RH报2SA-2021:1145

CVE-2021-20305 CVSS评分：8.1 严重程度：高

在Nettle中存在一个漏洞，其中一些Ne10ttle签名验证功能（GOST DSA，EDDSA和ECDSA）导致椭圆曲线密码学点（ECC）乘法功能被超出范围调用，可能导40致错误的结果。此漏洞使攻击者可以强制使用无效签名，从而导致断言失败或可能的验证。此漏洞的最大威胁是机密性，完整性和系统可用9：性。

受影响产品和版本

Red Hat Enterprise Linux Server 7 x86_64

Red Hat Enterprise红帽 Linux Workstation 7 x86_64

Red Hat Enterprise Linux Desktop 7 x86_64

RedNe Hat Enterprise Linux for IBM z Systems 7 s390x

Red Hat Enterprise Linux fottr Power, big endian 7 ppc64

Red Hat Enterprise Linux for Scientific Comleputing 7 x86_64

Red Hat Enterprise Linux for Power, little endian 7 ppc64le

解密码决方案

Redhat已发布安全更新,有关如何应用此更新的详细信息，请参阅：

https://access.redhat.com/ar库发ticles/11258

查看更多漏洞信息 以及升级请访问官网：

https://access.redhat.com/secu现越rity/security-updates/#/security-advisories

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