Multiple stack-based buffer overflows in the CertDecoder::GetName function in src/asn.cpp…
Priority HIGH 70CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
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.
Why it matters now
EPSS 0.69552 99th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 17
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:* | 5.0.0 to before 5.0.90; 5.1.0 to before 5.1.43 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:mysql:5.0.0:milestone1:*:*:*:*:*:* | 5.0.0 milestone1 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:mysql:5.0.0:milestone2:*:*:*:*:*:* | 5.0.0 milestone2 | Vulnerable | Oracle |
| cpe:2.3:a:wolfssl:yassl:*:*:*:*:*:*:*:* | before 1.9.9 | Vulnerable | wolfSSL |
| cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:* | 6.06 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:* | 8.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:* | 8.10 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:* | 9.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:9.10:*:*:*:*:*:*:* | 9.10 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:* | 10.04 | Vulnerable | Canonical |
- cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:* Versions 5.0.0 to before 5.0.90; 5.1.0 to before 5.1.43 Vulnerable ·Oracle
- cpe:2.3:a:oracle:mysql:5.0.0:milestone1:*:*:*:*:*:* Versions 5.0.0 milestone1 Vulnerable ·Oracle
- cpe:2.3:a:oracle:mysql:5.0.0:milestone2:*:*:*:*:*:* Versions 5.0.0 milestone2 Vulnerable ·Oracle
- cpe:2.3:a:wolfssl:yassl:*:*:*:*:*:*:*:* Versions before 1.9.9 Vulnerable ·wolfSSL
- cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:* Versions 6.06 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:* Versions 8.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:* Versions 8.10 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:* Versions 9.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:9.10:*:*:*:*:*:*:* Versions 9.10 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:* Versions 10.04 Vulnerable ·Canonical
Show 7 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:* | 10.10 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:11.04:*:*:*:*:*:*:* | 11.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:* | 11.10 | Vulnerable | Canonical |
| cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:* | 5.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Debian |
| cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:* | 5.1 to before 5.1.42 | Vulnerable | MariaDB |
- cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:* Versions 10.10 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:11.04:*:*:*:*:*:*:* Versions 11.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:* Versions 11.10 Vulnerable ·Canonical
- cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Debian
- cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:* Versions 5.1 to before 5.1.42 Vulnerable ·MariaDB
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2009-4484
- 2026-10-03 Alias added: GHSA-r9xr-rjgc-3q5h
References
Advisory 9
- USN-1397-1
- http://yassl.cvs.sourceforge.net/viewvc/yassl/yassl/taocrypt/src/asn.cpp?r1=1.13&r2=1.14
- USN-897-1
- http://www.metasploit.com/modules/exploit/linux/mysql/mysql_yassl_getname
- ADV-2010-0236
- https://bugzilla.redhat.com/show_bug.cgi?id=555313
- http://isc.sans.org/diary.html?storyid=7900
- ADV-2010-0233
- DSA-1997
Other 14
- http://intevydis.com/mysql_overflow1.py.txt
- http://dev.mysql.com/doc/refman/5.1/en/news-5-1-43.html
- http://www.yassl.com/release.html
- http://www.yassl.com/news.html#yassl199
- http://bazaar.launchpad.net/~mysql/mysql-server/mysql-5.0/revision/2837.1.1
- http://www.intevydis.com/blog/?p=106
- http://intevydis.com/mysql_demo.html
- http://intevydis.blogspot.com/2010/01/mysq-yassl-stack-overflow.html
- [dailydave] 20100106 0day demos
- http://www.intevydis.com/blog/?p=57
- http://dev.mysql.com/doc/refman/5.0/en/news-5-0-90.html
- 61956
- http://intevydis.com/vd-list.shtml
- [dailydave] 20100126 New db bugs
Sources
- CVE-2009-4484 · CVE Program
- CVE-2009-4484 · NVD
- FIRST EPSS
- GHSA-r9xr-rjgc-3q5h · GitHub Advisory Database · CC BY 4.0
- CVE-2009-4484 · Red Hat security data · CC BY 4.0
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