Buffer overflow in GNU Bash

CVE-2014-7186

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.

Vulnerability class: Buffer Overflow

EPSS: 0.643 (99.2th percentile) — read the EPSS interpretation.

Affected products

  • Gnu Bash — versions 1.14.0, 1.14.1, 1.14.2
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2014-7186?
CVE-2014-7186 is a vulnerability in GNU Bash, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2014-09-28.
Is CVE-2014-7186 known to be exploited?
39 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.