摘要:
ghostscript security update
安全等级: Critical
公告ID: KylinSec-SA-2023-2258
发布日期: 2023年9月9日
Ghostscript is an interpreter for PostScriptâ„¢ and Portable Document Format (PDF) files. Ghostscript consists of a PostScript interpreter layer, and a graphics library.
Security Fix(es):
In Artifex Ghostscript through 10.01.0, there is a buffer overflow leading to potential corruption of data internal to the PostScript interpreter, in base/sbcp.c. This affects BCPEncode, BCPDecode, TBCPEncode, and TBCPDecode. If the write buffer is filled to one byte less than full, and one then tries to write an escaped character, two bytes are written.(CVE-2023-28879)
Artifex Ghostscript through 10.01.2 mishandles permission validation for pipe devices (with the %pipe% prefix or the | pipe character prefix).(CVE-2023-36664)
A buffer overflow flaw was found in base/gdevdevn.c:1973 in devn_pcx_write_rle() in ghostscript. This issue may allow a local attacker to cause a denial of service via outputting a crafted PDF file for a DEVN device with gs.(CVE-2023-38559)
| cve名称 | 产品 | 组件 | 是否受影响 |
|---|---|---|---|
| CVE-2023-28879 | KY3.5.2 | ghostscript | Fixed |
| CVE-2023-36664 | KY3.5.2 | ghostscript | Fixed |
| CVE-2023-38559 | KY3.5.2 | ghostscript | Fixed |
| 软件名称 | 架构 | 版本号 |
|---|---|---|
| ghostscript-help | noarch | 9.55.0-5.ky3_5 |
| ghostscript-devel | x86_64 | 9.55.0-5.ky3_5 |
| ghostscript-tools-dvipdf | x86_64 | 9.55.0-5.ky3_5 |
| ghostscript | x86_64 | 9.55.0-5.ky3_5 |
| ghostscript | aarch64 | 9.55.0-5.ky3_5 |
| ghostscript-devel | aarch64 | 9.55.0-5.ky3_5 |
| ghostscript-tools-dvipdf | aarch64 | 9.55.0-5.ky3_5 |
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
