CVE-2014-7186 Memory corruption in n/a
Remote attackers can cause a denial of service in GNU Bash via crafted here documents, impacting systems using the shell for remote execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2014-7186?
CVE-2014-7186 is a critical memory corruption vulnerability in n/a, published on 28 Sep 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-119
Which versions are affected by CVE-2014-7186?
It affects 1 product.
Products include Gnu Bash.
How do I fix CVE-2014-7186?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2014-7186 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2014-7186 exists.
Public exploit code: 2 Exploit-DB entries.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2014-7186, GHSA-w7vx-gpvr-f5cg, UBUNTU-CVE-2014-7186.