漏洞描述
GNU Bash through 4.3 bash43-026 does not properly parse function definitions in the values of environment variables, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized memory access, and untrusted-pointer read and write operations) via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-6271 and CVE-2014-7169.
影响产品
修复建议
建议关注厂商安全公告，及时升级至已修复版本，并结合实际资产暴露情况采取缓解措施。
参考链接
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e.comhttps://support.apple.com/HT205267↗lcamtuf.blogspot.comhttp://lcamtuf.blogspot.com/2014/10/bash-bug-how-we-finally-cracked.html↗marc.infohttp://marc.info/?l=bugtraq&m=141577241923505&w=2↗support.f5.comhttps://support.f5.com/kb/en-us/solutions/public/15000/600/sol15629.html↗secunia.comhttp://secunia.com/advisories/61313↗secunia.comhttp://secunia.com/advisories/60433↗secunia.comhttp://secunia.com/advisories/61471↗www.vmware.comhttp://www.vmware.com/security/advisories/VMSA-2014-0010.html↗lcamtuf.blogspot.comhttp://lcamtuf.blogspot.com/2014/09/bash-bug-apply-unofficial-patch-now.html↗secunia.comhttp://secunia.com/advisories/62312↗secunia.comhttp://secunia.com/advisories/58200↗lists.apple.comhttp://lists.apple.com/archives/security-announce/2015/Jan/msg00003.html↗marc.infohttp://marc.info/?l=bugtraq&m=141383026420882&w=2↗marc.infohttp://marc.info/?l=bugtraq&m=142358026505815&w=2↗secunia.comhttp://secunia.com/advisories/61287↗www-01.ibm.comhttp://www-01.ibm.com/support/docview.wss?uid=isg3T1021361↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2014-10/msg00004.html↗secunia.comhttp://secunia.com/advisories/62343↗secunia.comhttp://secunia.com/advisories/61780↗support.apple.comhttp://support.apple.com/HT204244↗www-01.ibm.comhttp://www-01.ibm.com/support/docview.wss?uid=isg3T1021272↗secunia.comhttp://secunia.com/advisories/61291↗secunia.comhttp://secunia.com/advisories/60193↗kb.bluecoat.comhttps://kb.bluecoat.com/index?page=content&id=SA82↗kc.mcafee.comhttps://kc.mcafee.com/corporate/index?page=content&id=SB10085↗www-01.ibm.comhttp://www-01.ibm.com/support/docview.wss?uid=isg3T1021279↗secunia.comhttp://secunia.com/advisories/60044↗www-01.ibm.comhttp://www-01.ibm.com/support/docview.wss?uid=swg21685541↗marc.infohttp://marc.info/?l=bugtraq&m=142118135300698&w=2↗marc.infohttp://marc.info/?l=bugtraq&m=141345648114150&w=2↗