• 公告ID (KylinSec-SA-2025-1627)

摘要:

libtasn1 security update

安全等级: Critical

公告ID: KylinSec-SA-2025-1627

发布日期: 2025年3月18日

关联CVE: CVE-2024-12133  

  • 详细介绍

1. 漏洞描述

   

Libtasn1 is the ASN.1 library used by GnuTLS, p11-kit and some other packages. The goal of this implementation is to be highly portable, and only require an ANSI C99 platform.This library provides Abstract Syntax Notation One (ASN.1, as specified by the X.680 ITU-T recommendation) parsing and structures management, and Distinguished Encoding Rules (DER, as per X.690) encoding and decoding functions.

Security Fix(es):

A flaw in libtasn1 causes inefficient handling of specific certificate data. When processing a large number of elements in a certificate, libtasn1 takes much longer than expected, which can slow down or even crash the system. This flaw allows an attacker to send a specially crafted certificate, causing a denial of service attack.(CVE-2024-12133)

2. 影响范围

cve名称 产品 组件 是否受影响
CVE-2024-12133 KY3.4-5A libtasn1 Fixed
CVE-2024-12133 V6 libtasn1 Fixed

3. 影响组件

    libtasn1

4. 修复版本

   

KY3.4-5A

软件名称 架构 版本号
libtasn1-help noarch 4.16.0-3.kb1.ky3_4
libtasn1 x86_64 4.16.0-3.kb1.ky3_4
libtasn1-devel x86_64 4.16.0-3.kb1.ky3_4
libtasn1 aarch64 4.16.0-3.kb1.ky3_4
libtasn1-devel aarch64 4.16.0-3.kb1.ky3_4

V6

软件名称 架构 版本号
libtasn1-help noarch 4.19.0-2.ks6
libtasn1 x86_64 4.19.0-2.ks6
libtasn1-devel x86_64 4.19.0-2.ks6
libtasn1 aarch64 4.19.0-2.ks6
libtasn1-devel aarch64 4.19.0-2.ks6

5. 修复方法


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

6. 下载链接

   

KY3.4-5A:

x86_64:

     libtasn1-help   

     libtasn1   

     libtasn1-devel   

aarch64:

     libtasn1-help   

     libtasn1   

     libtasn1-devel   

V6:

x86_64:

     libtasn1-help   

     libtasn1   

     libtasn1-devel   

aarch64:

     libtasn1-help   

     libtasn1   

     libtasn1-devel   

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