CVE-2013-5580 Denial of service in n/a
Remote attackers can crash the ngIRCd server via assertion failure if the NoticeAuth configuration option is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2013-5580?
CVE-2013-5580 is a medium-severity denial of service vulnerability in n/a, published on 1 Oct 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The (1) Conn_StartLogin and (2) cb_Read_Resolver_Result functions in conn.c in ngIRCd 18 through 20.2, when the configuration option NoticeAuth is enabled, does not properly handle the return code for the Handle_Write function, which allows remote attackers to cause a denial of service (assertion failure and server crash) via unspecified vectors, related to a "notice auth" message not being sent to a new client.
Weakness: CWE-20
Which versions are affected by CVE-2013-5580?
It affects 1 product.
Products include Barton Ngircd.
How do I fix CVE-2013-5580?
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-2013-5580 being exploited?
There is no known exploitation of CVE-2013-5580 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-8g77-rrv8-793x, MGASA-2013-0265.