1. 漏洞描述

X.Org X11 X server

Security Fix(es):

A heap-based buffer over-read vulnerability was found in the X.org server's ProcXIGetSelectedEvents() function. This issue occurs when byte-swapped length values are used in replies, potentially leading to memory leakage and segmentation faults, particularly when triggered by a client with a different endianness. This vulnerability could be exploited by an attacker to cause the X server to read heap memory values and then transmit them back to the client until encountering an unmapped page, resulting in a crash. Despite the attacker's inability to control the specific memory copied into the replies, the small length values typically stored in a 32-bit integer can result in significant attempted out-of-bounds reads.(CVE-2024-31080)

A heap-based buffer over-read vulnerability was found in the X.org server's ProcXIPassiveGrabDevice() function. This issue occurs when byte-swapped length values are used in replies, potentially leading to memory leakage and segmentation faults, particularly when triggered by a client with a different endianness. This vulnerability could be exploited by an attacker to cause the X server to read heap memory values and then transmit them back to the client until encountering an unmapped page, resulting in a crash. Despite the attacker's inability to control the specific memory copied into the replies, the small length values typically stored in a 32-bit integer can result in significant attempted out-of-bounds reads.(CVE-2024-31081)

A heap-based buffer over-read vulnerability was found in the X.org server's ProcAppleDRICreatePixmap() function. This issue occurs when byte-swapped length values are used in replies, potentially leading to memory leakage and segmentation faults, particularly when triggered by a client with a different endianness. This vulnerability could be exploited by an attacker to cause the X server to read heap memory values and then transmit them back to the client until encountering an unmapped page, resulting in a crash. Despite the attacker's inability to control the specific memory copied into the replies, the small length values typically stored in a 32-bit integer can result in significant attempted out-of-bounds reads.(CVE-2024-31082)

A use-after-free vulnerability was found in the ProcRenderAddGlyphs() function of Xorg servers. This issue occurs when AllocateGlyph() is called to store new glyphs sent by the client to the X server, potentially resulting in multiple entries pointing to the same non-refcounted glyphs. Consequently, ProcRenderAddGlyphs() may free a glyph, leading to a use-after-free scenario when the same glyph pointer is subsequently accessed. This flaw allows an authenticated attacker to execute arbitrary code on the system by sending a specially crafted request.(CVE-2024-31083)

2. 影响范围

3. 影响组件

4. 修复版本

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:

     xorg-x11-server-help   

     xorg-x11-server-devel   

     xorg-x11-server   

     xorg-x11-server-Xephyr   

aarch64:

     xorg-x11-server-help   

     xorg-x11-server-Xephyr   

     xorg-x11-server-devel   

     xorg-x11-server   

KY3.5.2:

x86_64:

     xorg-x11-server-source   

     xorg-x11-server-help   

     xorg-x11-server-Xephyr   

     xorg-x11-server-devel   

     xorg-x11-server-common   

     xorg-x11-server-Xvfb   

     xorg-x11-server   

     xorg-x11-server-Xdmx   

     xorg-x11-server-Xnest   

aarch64:

     xorg-x11-server-source   

     xorg-x11-server-help   

     xorg-x11-server-common   

     xorg-x11-server-Xvfb   

     xorg-x11-server-Xdmx   

     xorg-x11-server-Xnest   

     xorg-x11-server-Xephyr   

     xorg-x11-server   

     xorg-x11-server-devel