[v3.0] bash: Shellshock vulnerabilities allowing remote code execution (CVE-2014-6271 CVE-2014-7169)
GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote attackers to execute arbitrary code 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, aka “ShellShock.” NOTE: the original fix for this issue was incorrect; CVE-2014-7169 has been assigned to cover the vulnerability that is still present after the incorrect fix.
•MISC:
http://lcamtuf.blogspot.com/2014/09/quick-notes-about-bash-bug-its-impact.html
•CONFIRM: https://bugzilla.redhat.com/show\_bug.cgi?id=1141597
•CONFIRM:
https://securityblog.redhat.com/2014/09/24/bash-specially-crafted-environment-variables-code-injection-attack/
•URL:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140926-bash
•URL: http://www.debian.org/security/2014/dsa-3032
•URL: http://rhn.redhat.com/errata/RHSA-2014-1293.html
•URL: http://rhn.redhat.com/errata/RHSA-2014-1294.html
•URL: http://rhn.redhat.com/errata/RHSA-2014-1295.html
•URL: http://www.ubuntu.com/usn/USN-2362-1
•URL: http://www.us-cert.gov/ncas/alerts/TA14-268A
•URL: http://www.kb.cert.org/vuls/id/252743
(from redmine: issue id 3406, created on 2014-09-30, closed on 2014-10-02)
- Relations:
- parent #3402 (closed)
- Changesets:
- Revision b108201b by Natanael Copa on 2014-09-30T09:11:06Z:
main/bash: security upgrade to 4.3.027 (CVE-2014-7169)
fixes #3406