Vulnerability in OpenSSL
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.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.274 (98.0th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.274 · newest: 0.274 · change: 0.000
Affected products
- OpenSSL — versions 0.9.6, 0.9.7
Public proof-of-concept exploits
References
- oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:5292 (signature, vdb-entry)
- www.redhat.com/support/errata/RHSA-2003-292.html (vendor-advisory)
- www.kb.cert.org/vuls/id/255484 (US Government Resource, third-party-advisory)
- www.vupen.com/english/advisories/2006/3900 (vdb-entry)
- www.debian.org/security/2003/dsa-393 (vendor-advisory)
- www-1.ibm.com/support/docview.wss
- www.uniras.gov.uk/vuls/2003/006489/openssl.htm
- www.debian.org/security/2003/dsa-394 (vendor-advisory)
- www.redhat.com/support/errata/RHSA-2003-291.html (vendor-advisory, Patch, Vendor Advisory)
- www.cert.org/advisories/CA-2003-26.html (US Government Resource, third-party-advisory)
Frequently asked questions
- What is CVE-2003-0543?
- CVE-2003-0543 is a vulnerability in OpenSSL. Published 2003-11-17.
- Is CVE-2003-0543 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.