Unscored severity · published Nov 17, 2003
CVE-2003-0543
Integer overflow in OpenSSL 0.9.6 and 0.9.7 allows remote attackers to cause a denial of service (crash) via an SSL client certificate with certain ASN.1 tag values
–
CVSS
27.4%
EPSS
No
On KEV
Description
Integer overflow in OpenSSL 0.9.6 and 0.9.7 allows remote attackers to cause a denial of service (crash) via an SSL client certificate with certain ASN.1 tag values.
Exploitation
Is it being used?
Exploit prediction (EPSS)27.4% · higher than 98% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Openssl · Openssl
0.9.6; 0.9.7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2003-0543
CVE.org
https://www.cve.org/CVERecord?id=CVE-2003-0543
Vendor Advisory
http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=104893
secunia.com
http://secunia.com/advisories/22249
sunsolve.sun.com
http://sunsolve.sun.com/search/document.do?assetkey=1-66-201029-1
www-1.ibm.com
http://www-1.ibm.com/support/docview.wss?uid=swg21247112
US Government Resource
http://www.cert.org/advisories/CA-2003-26.html
www.debian.org
http://www.debian.org/security/2003/dsa-393
More from Openssl
7.5
CVE-2014-0160
OpenSSL Information Disclosure Vulnerability
9.8
CVE-2026-63073
Untrusted Sender DN Used as Format String in CMP Response Validation
9.8
CVE-2026-31789
Heap Buffer Overflow in Hexadecimal Conversion
9.8
CVE-2022-2274
RSA implementation bug in AVX512IFMA instructions
9.8
CVE-2021-3711
SM2 Decryption Buffer Overflow
