安全公告详情

NS-SA-2021-0118

2021-09-24 00:31:57

简介

important: bzip2/bash security update

严重级别

important

主题

An update for bzip2/bash is now available for NewStart CGSL MAIN 6.02.
NewStart Security has rated this update as having a security impact of important. A Common Vunlnerability Scoring System(CVSS)base score, which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section.

详细描述

bzip2: Libraries for applications using the bzip2 compression format.
bash: The GNU Bourne Again shell (Bash) is a shell or command language interpreter that is compatible with the Bourne shell (sh). Bash incorporates useful features from the Korn shell (ksh) and the C shell (csh). Most sh scripts can be run by bash without modification.


Security Fix(es):
bzip2: A use-after-free flaw was found in bzip2recover, leading to a null pointer dereference, or a write to a closed file descriptor. An attacker could use this flaw by sending a specially crafted bzip2 file to recover and force the program to crash.(CVE-2016-3189)
bzip2: bugfix
bash: It was found that the fix for CVE-2014-6271 was incomplete, and Bash still allowed certain characters to be injected into other environments via specially crafted environment variables. An attacker could potentially use this flaw to override or bypass environment restrictions to execute shell commands. Certain services and applications allow remote unauthenticated attackers to provide environment variables, allowing them to exploit this issue.(CVE-2014-7169)
bash: An arbitrary command injection flaw was found in the way bash processed the hostname value. A malicious DHCP server could use this flaw to execute arbitrary commands on the DHCP client machines running bash under specific circumstances.(CVE-2016-0634)
bash: An arbitrary command injection flaw was found in the way bash processed the SHELLOPTS and PS4 environment variables. A local, authenticated attacker could use this flaw to exploit poorly written setuid programs to elevate their privileges under certain circumstances.(CVE-2016-7543)
bash: bugfix


Solution:
For details on how to apply this update, which includes the changes described in this advisory, refer to:
http://security.gd-linux.com/how_to_apply_patch.html
Remember the build tag is 6.02.60B5.

影响组件

  • bzip2
  • bash

影响产品

  • CGSL MAIN 6.02

更新包

{"fix":[{"product":"CGSL MAIN 6.02","pkgs":[{"binary":["bzip2-libs-1.0.6-26.el8.cgslv6_2.0.1.g9ce9022.x86_64.rpm","bzip2-1.0.6-26.el8.cgslv6_2.0.1.g9ce9022.x86_64.rpm","bzip2-libs-debuginfo-1.0.6-26.el8.cgslv6_2.0.1.g9ce9022.x86_64.rpm","bzip2-debugsource-1.0.6-26.el8.cgslv6_2.0.1.g9ce9022.x86_64.rpm","bzip2-debuginfo-1.0.6-26.el8.cgslv6_2.0.1.g9ce9022.x86_64.rpm","bzip2-static-1.0.6-26.el8.cgslv6_2.0.1.g9ce9022.x86_64.rpm","bzip2-devel-1.0.6-26.el8.cgslv6_2.0.1.g9ce9022.x86_64.rpm"],"source":"bzip2-1.0.6-26.el8.cgslv6_2.0.1.g9ce9022.src.rpm"},{"binary":["bash-4.4.19-10.el8.cgslv6_2.0.1.g98f2d97.x86_64.rpm","bash-doc-4.4.19-10.el8.cgslv6_2.0.1.g98f2d97.x86_64.rpm","bash-debugsource-4.4.19-10.el8.cgslv6_2.0.1.g98f2d97.x86_64.rpm","bash-debuginfo-4.4.19-10.el8.cgslv6_2.0.1.g98f2d97.x86_64.rpm","bash-devel-4.4.19-10.el8.cgslv6_2.0.1.g98f2d97.x86_64.rpm"],"source":"bash-4.4.19-10.el8.cgslv6_2.0.1.g98f2d97.src.rpm"}]}]}

CVE

参考