Patchfirst
CVE-2014-7186 Public exploit EPSS 64.3%

The redirection implementation in parse.y in GNU Bash through 4.3 bash43-026 allows remote attackers to cause a denial…

Summary

The flaw is in the redirection implementation in parse.y of GNU Bash through version 4.3 (patch level bash43-026). An attacker who can supply crafted here-document input to Bash can trigger an out-of-bounds array access that crashes the application, and may possibly achieve other unspecified impact.

Official description · CVE.org

The redirection implementation in parse.y in GNU Bash through 4.3 bash43-026 allows remote attackers to cause a denial of service (out-of-bounds array access and application crash) or possibly have unspecified other impact via crafted use of here documents, aka the "redir_stack" issue.

Breakdown
63.7 / 100
Exploited
Yes, in VulnCheck KEV
Reports
1
Tactics
0/15

First seen exploited 3 years after disclosure. Public exploit code (Exploit-DB) appeared 1 day after disclosure.

  1. Disclosedday 0
  2. Public exploit codeExploit-DB+1 day
  3. First seen exploitedVulnCheck KEV evidence+3 yrs

techniques

No techniques linked

No high- or medium-confidence techniques. The 2 available links are lower confidence and listed below.

Lower-confidence links (2)

These come from early or generic mappings, text matching, or contradict this CVE’s details (for example a public-facing technique on a bug that needs a user to open a file). Shown for completeness.

  • Unix ShellT1059.004 CTID attack_to_cve Phase 1 "Uncategorized" mapping (not staged by impact)
  • Exploit Public-Facing ApplicationT1190 CTID attack_to_cve Phase 1 "Uncategorized" mapping (not staged by impact)

What security researchers reported

Named in 1 threat report
1 reportboozallen.com

Reports are matched by finding the exact id CVE-2014-7186 in their text; nobody has reviewed the match. One passage is shown per report, at most 320 characters, linked to the original.

References

125 links, grouped by NVD tag

x_refsource_CONFIRM 38

www-01.ibm.com/support/docview.wss?uid=ssg1S1004897www-01.ibm.com/support/docview.wss?uid=swg21685749supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk102673&src=securityAlertswww-01.ibm.com/support/docview.wss?uid=swg21686084www-01.ibm.com/support/docview.wss?uid=swg21686479www-01.ibm.com/support/docview.wss?uid=swg21685541oracle.com/technetwork/topics/security/bashcve-2014-7169-2317675.htmlkc.mcafee.com/corporate/index?page=content&id=SB10085
Show 30 moreShow fewerwww-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5096315support.f5.com/kb/en-us/solutions/public/15000/600/sol15629.htmlwww-01.ibm.com/support/docview.wss?uid=swg21685604www-01.ibm.com/support/docview.wss?uid=swg21686445www-01.ibm.com/support/docview.wss?uid=swg21686131kb.juniper.net/InfoCenter/index?page=content&id=JSA10648www-01.ibm.com/support/docview.wss?uid=ssg1S1004898www-01.ibm.com/support/docview.wss?uid=swg21685914support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c04497075support.apple.com/HT205267support.novell.com/security/cve/CVE-2014-7186.htmlsuse.com/support/shellshock/support.apple.com/HT204244support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c04518183www-01.ibm.com/support/docview.wss?uid=isg3T1021272vmware.com/security/advisories/VMSA-2014-0010.htmlnovell.com/support/kb/doc.php?id=7015721www-01.ibm.com/support/docview.wss?uid=swg21687079www-01.ibm.com/support/docview.wss?uid=swg21686246www-01.ibm.com/support/docview.wss?uid=ssg1S1004915qnap.com/i/en/support/con_show.php?cid=61www-01.ibm.com/support/docview.wss?uid=isg3T1021279support.citrix.com/article/CTX200223www-01.ibm.com/support/docview.wss?uid=swg21686447www-01.ibm.com/support/docview.wss?uid=isg3T1021361support.citrix.com/article/CTX200217www-01.ibm.com/support/docview.wss?uid=swg21686494kb.bluecoat.com/index?page=content&id=SA82www-01.ibm.com/support/docview.wss?uid=swg21685733www-01.ibm.com/support/docview.wss?uid=ssg1S1004879

vendor-advisory 35

marc.info/?l=bugtraq&m=141577137423233&w=2marc.info/?l=bugtraq&m=141383138121313&w=2marc.info/?l=bugtraq&m=142721162228379&w=2marc.info/?l=bugtraq&m=142358026505815&w=2lists.opensuse.org/opensuse-security-announce/2014-09/msg00038.htmllists.opensuse.org/opensuse-security-announce/2014-09/msg00044.htmlmarc.info/?l=bugtraq&m=141383026420882&w=2marc.info/?l=bugtraq&m=141585637922673&w=2
Show 27 moreShow fewermarc.info/?l=bugtraq&m=141576728022234&w=2marc.info/?l=bugtraq&m=142358078406056&w=2marc.info/?l=bugtraq&m=142113462216480&w=2lists.apple.com/archives/security-announce/2015/Sep/msg00008.htmlmarc.info/?l=bugtraq&m=141879528318582&w=2rhn.redhat.com/errata/RHSA-2014-1312.htmlmarc.info/?l=bugtraq&m=142118135300698&w=2ubuntu.com/usn/USN-2364-1marc.info/?l=bugtraq&m=141383196021590&w=2marc.info/?l=bugtraq&m=141383081521087&w=2lists.opensuse.org/opensuse-security-announce/2014-09/msg00042.htmlmandriva.com/security/advisories?name=MDVSA-2015:164tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140926-bashmarc.info/?l=bugtraq&m=141450491804793&w=2marc.info/?l=bugtraq&m=142289270617409&w=2lists.opensuse.org/opensuse-security-announce/2014-09/msg00041.htmlmarc.info/?l=bugtraq&m=141577297623641&w=2marc.info/?l=bugtraq&m=141383244821813&w=2marc.info/?l=bugtraq&m=141577241923505&w=2rhn.redhat.com/errata/RHSA-2014-1354.htmlmarc.info/?l=bugtraq&m=141694386919794&w=2marc.info/?l=bugtraq&m=141330468527613&w=2marc.info/?l=bugtraq&m=141345648114150&w=2lists.apple.com/archives/security-announce/2015/Jan/msg00003.htmlmarc.info/?l=bugtraq&m=141383304022067&w=2rhn.redhat.com/errata/RHSA-2014-1311.htmllists.opensuse.org/opensuse-security-announce/2014-09/msg00048.html
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