CVE-2009-4484 Memory corruption in n/a
Remote attackers can execute arbitrary code or crash the MySQL server by sending a crafted X.509 certificate during SSL connection.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2009-4484?
CVE-2009-4484 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 30 Dec 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Multiple stack-based buffer overflows in the CertDecoder::GetName function in src/asn.cpp in TaoCrypt in yaSSL before 1.9.9, as used in mysqld in MySQL 5.0.x before 5.0.90, MySQL 5.1.x before 5.1.43, MySQL 5.5.x through 5.5.0-m2, and other products, allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption and daemon crash) by establishing an SSL connection and sending an X.509 client certificate with a crafted name field, as demonstrated by mysql_overflow1.py and the vd_mysql5 module in VulnDisco Pack Professional 8.11. NOTE: this was originally reported for MySQL 5.0.51a.
Weakness: CWE-787
Which versions are affected by CVE-2009-4484?
It affects 5 products.
Products include Canonical Ubuntu Linux, Debian Debian Linux, Mariadb Mariadb, Oracle Mysql, Wolfssl Yassl.
How do I fix CVE-2009-4484?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2009-4484 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-4484 exists.
Public exploit code: 1 Metasploit module and 1 Exploit-DB entry.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as GHSA-r9xr-rjgc-3q5h.