CVE-2015-7686 Denial of service in n/a
Remote attackers can cause denial of service via CPU exhaustion in the Perl Email-Address module using crafted email strings with nested comments.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2015-7686?
CVE-2015-7686 is a high-severity denial of service vulnerability in n/a, published on 3 Oct 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Algorithmic complexity vulnerability in Address.pm in the Email-Address module 1.908 and earlier for Perl allows remote attackers to cause a denial of service (CPU consumption) via a crafted string containing a list of e-mail addresses in conjunction with parenthesis characters that can be associated with nested comments. NOTE: the default configuration in 1.908 mitigates this vulnerability but misparses certain realistic comments.
Which versions are affected by CVE-2015-7686?
It affects 1 product.
Products include Email-Address Project Email-Address.
How do I fix CVE-2015-7686?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2015-7686 being exploited?
There is no known exploitation of CVE-2015-7686 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2015-7686, GHSA-24jp-cwv2-qjwh, MGASA-2016-0397, UBUNTU-CVE-2015-7686.