What’s Vulnerable › Vulnerabilities

CVE-2003-0851

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2003-12-01 · updated 2026-06-16

Description

OpenSSL 0.9.6k allows remote attackers to cause a denial of service (crash via large recursion) via malformed ASN.1 sequences.

Affected products

• Cisco Css11000 Content Services Switch: all versions
• Cisco IOS: 12.1(11)e, 12.1(11b)e, 12.2sx, 12.2sy
• Cisco Pix Firewall: 6.2.2_.111
• Cisco Pix Firewall Software: 6.0, 6.0(1), 6.0(2), 6.0(3), 6.0(4), 6.0(4.101) (+12)
• OpenSSL: 0.9.6, 0.9.6a, 0.9.6b, 0.9.6c, 0.9.6d, 0.9.6e (+9)

References

• http://marc.info/?l=bugtraq&m=106796246511667&w=2
• http://marc.info/?l=bugtraq&m=108403850228012&w=2
• http://rhn.redhat.com/errata/RHSA-2004-119.html
• http://secunia.com/advisories/17381
• http://www.cisco.com/warp/public/707/cisco-sa-20030930-ssl.shtml
• http://www.kb.cert.org/vuls/id/412478
• http://www.openssl.org/news/secadv_20031104.txt
• http://www.redhat.com/archives/fedora-announce-list/2005-October/msg00087.html
• http://www.securityfocus.com/bid/8970
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5528

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