Not ratedCVE-2004-0081

    OpenSSL: Infinite Loop (CVE-2004-0081)

    Published Sources: CVE.org

    What is affected, what to do

    OpenSSL 0.9.6 before 0.9.6d does not properly handle unknown message types, which allows remote attackers to cause a denial of service (infinite loop), as demonstrated using the Codenomicon TLS Test Tool.

    The available sources name no fixed version. Check the vendor guidance in the references below.

    Affected
    • Cisco FWSM 3.2_3 eq 1.1.2..1.1.2
    • Cisco FWSM 3.2_3 eq 1.1.3..1.1.3
    • Cisco FWSM 3.2_3 eq 1.1_\(3.005\)..1.1_\(3.005\)
    • Cisco FWSM 3.2_3 eq 2.1_\(0.208\)..2.1_\(0.208\)
    • HP Apache-Based Web Server eq 2.0.43.00..2.0.43.00
    • HP Apache-Based Web Server eq 2.0.43.04..2.0.43.04
    • Symantec Clientless VPN Gateway 4400 Series eq 5.0..5.0
    • Cisco CiscoWorks Common Management Foundation eq 2.1..2.1
    • Cisco CiscoWorks Common Services eq 2.2..2.2
    • Avaya Converged Communications Server eq 2.0..2.0
    • Avaya SG200 eq 4.4..4.4
    • Avaya SG200 eq 4.31.29..4.31.29
    • Avaya SG203 eq 4.4..4.4
    • Avaya SG203 eq 4.31.29..4.31.29
    • Avaya SG208 eq 4.4..4.4
    • Avaya SG5 eq 4.2..4.2
    • Avaya SG5 eq 4.3..4.3
    • Avaya SG5 eq 4.4..4.4
    • Apple Mac OS X eq 10.3.3..10.3.3
    • Apple Mac OS X Server eq 10.3.3..10.3.3
    • FreeBSD eq 4.8..4.8
    • FreeBSD eq 4.9..4.9
    • FreeBSD eq 5.1..5.1
    • FreeBSD eq 5.2..5.2
    • FreeBSD eq 5.2.1..5.2.1
    • HP-UX eq 8.05..8.05
    • HP-UX eq 11.00..11.00
    • HP-UX eq 11.11..11.11
    • HP-UX eq 11.23..11.23
    • OpenBSD eq 3.3..3.3
    • OpenBSD eq 3.4..3.4
    • Redhat Enterprise Linux eq 3.0..3.0
    • Redhat Enterprise Linux Desktop eq 3.0..3.0
    • Red Hat Linux eq 7.2..7.2
    • Red Hat Linux eq 7.3..7.3
    • Red Hat Linux eq 8.0..8.0
    • Sco Openserver eq 5.0.6..5.0.6
    • Sco Openserver eq 5.0.7..5.0.7
    • Cisco IOS eq 12.1\(11\)e..12.1\(11\)e
    • Cisco IOS eq 12.1\(11b\)e..12.1\(11b\)e
    • Cisco IOS eq 12.1\(11b\)e12..12.1\(11b\)e12
    • Cisco IOS eq 12.1\(11b\)e14..12.1\(11b\)e14
    • Cisco IOS eq 12.1\(13\)e9..12.1\(13\)e9
    • Cisco IOS eq 12.1\(19\)e1..12.1\(19\)e1
    • Cisco IOS eq 12.2\(14\)sy..12.2\(14\)sy
    • Cisco IOS eq 12.2\(14\)sy1..12.2\(14\)sy1
    • Cisco IOS eq 12.2sy..12.2sy
    • Cisco IOS eq 12.2za..12.2za
    • 4D Webstar eq 4.0..4.0
    • 4D Webstar eq 5.2..5.2
    • 4D Webstar eq 5.2.1..5.2.1
    • 4D Webstar eq 5.2.2..5.2.2
    • 4D Webstar eq 5.2.3..5.2.3
    • 4D Webstar eq 5.2.4..5.2.4
    • 4D Webstar eq 5.3..5.3
    • 4D Webstar eq 5.3.1..5.3.1
    • Avaya Intuity R5 R5.1.46 eq 5.1.46..5.1.46
    • Avaya Intuity R5 R5.1.46 eq s3210..s3210
    • Avaya Intuity R5 R5.1.46 eq s3400..s3400
    • Avaya Vsu eq 5..5
    • Avaya Vsu eq 5x..5x
    • Avaya Vsu eq 100_r2.0.1..100_r2.0.1
    • Avaya Vsu eq 500..500
    • Avaya Vsu eq 2000_r2.0.1..2000_r2.0.1
    • Avaya Vsu eq 5000_r2.0.1..5000_r2.0.1
    • Avaya Vsu eq 7500_r2.0.1..7500_r2.0.1
    • Avaya Vsu eq 10000_r2.0.1..10000_r2.0.1
    • Checkpoint Firewall-1 eq 2.0..2.0
    • Checkpoint Firewall-1 eq next_generation_fp0..next_generation_fp0
    • Checkpoint Firewall-1 eq next_generation_fp1..next_generation_fp1
    • Checkpoint Firewall-1 eq next_generation_fp2..next_generation_fp2
    • Checkpoint Provider-1 eq 4.1..4.1
    • Checkpoint VPN-1 eq next_generation..next_generation
    • Checkpoint VPN-1 eq next_generation_fp0..next_generation_fp0
    • Checkpoint VPN-1 eq next_generation_fp1..next_generation_fp1
    • Checkpoint VPN-1 eq vsx_ng_with_application_intelligence..vsx_ng_with_application_intelligence
    • Cisco Css Secure Content Accelerator eq 1.0..1.0
    • Cisco Css Secure Content Accelerator eq 2.0..2.0
    • Cisco Okena Stormwatch eq 3.2..3.2
    • Cisco Pix Firewall eq 6.2.2_.111..6.2.2_.111
    • Cisco Web NS (Networking Services) Software eq 6.10..6.10
    • Cisco Web NS (Networking Services) Software eq 6.10_b4..6.10_b4
    • Cisco Web NS (Networking Services) Software eq 7.1_0.1.02..7.1_0.1.02
    • Cisco Web NS (Networking Services) Software eq 7.1_0.2.06..7.1_0.2.06
    • Cisco Web NS (Networking Services) Software eq 7.2_0.0.03..7.2_0.0.03
    • Cisco Web NS (Networking Services) Software eq 7.10..7.10
    • Cisco Web NS (Networking Services) Software eq 7.10_.0.06s..7.10_.0.06s
    • Dell BSAFE SSL-J eq 3.0..3.0
    • Dell BSAFE SSL-J eq 3.0.1..3.0.1
    • Dell BSAFE SSL-J eq 3.1..3.1
    • HP WBEM eq a.01.05.08..a.01.05.08
    • HP WBEM eq a.02.00.00..a.02.00.00
    • HP WBEM eq a.02.00.01..a.02.00.01
    • Lite Speed Technologies Litespeed Web Server eq 1.0.1..1.0.1
    • Lite Speed Technologies Litespeed Web Server eq 1.0.2..1.0.2
    • Lite Speed Technologies Litespeed Web Server eq 1.0.3..1.0.3
    • Lite Speed Technologies Litespeed Web Server eq 1.1..1.1
    • Lite Speed Technologies Litespeed Web Server eq 1.1.1..1.1.1
    • Lite Speed Technologies Litespeed Web Server eq 1.2.1..1.2.1
    • Lite Speed Technologies Litespeed Web Server eq 1.2.2..1.2.2
    • Lite Speed Technologies Litespeed Web Server eq 1.2_rc1..1.2_rc1
    • Lite Speed Technologies Litespeed Web Server eq 1.2_rc2..1.2_rc2
    • Lite Speed Technologies Litespeed Web Server eq 1.3..1.3
    • Lite Speed Technologies Litespeed Web Server eq 1.3.1..1.3.1
    • Lite Speed Technologies Litespeed Web Server eq 1.3_rc1..1.3_rc1
    • Lite Speed Technologies Litespeed Web Server eq 1.3_rc2..1.3_rc2
    • Lite Speed Technologies Litespeed Web Server eq 1.3_rc3..1.3_rc3
    • Neoteris Instant Virtual Extranet eq 3.0..3.0
    • Neoteris Instant Virtual Extranet eq 3.1..3.1
    • Neoteris Instant Virtual Extranet eq 3.2..3.2
    • Neoteris Instant Virtual Extranet eq 3.3..3.3
    • Neoteris Instant Virtual Extranet eq 3.3.1..3.3.1
    • Novell eDirectory eq 8.0..8.0
    • Novell eDirectory eq 8.5..8.5
    • Novell eDirectory eq 8.5.12a..8.5.12a
    • Novell eDirectory eq 8.5.27..8.5.27
    • Novell eDirectory eq 8.6.2..8.6.2
    • Novell eDirectory eq 8.7..8.7
    • Novell eDirectory eq 8.7.1..8.7.1
    • Novell iManager eq 1.5..1.5
    • Novell iManager eq 2.0..2.0
    • OpenSSL eq 0.9.6c..0.9.6c
    • OpenSSL eq 0.9.6d..0.9.6d
    • OpenSSL eq 0.9.6e..0.9.6e
    • OpenSSL eq 0.9.6f..0.9.6f
    • OpenSSL eq 0.9.6g..0.9.6g
    • OpenSSL eq 0.9.6h..0.9.6h
    • OpenSSL eq 0.9.6i..0.9.6i
    • OpenSSL eq 0.9.6j..0.9.6j
    • OpenSSL eq 0.9.6k..0.9.6k
    • OpenSSL eq 0.9.7..0.9.7
    • OpenSSL eq 0.9.7a..0.9.7a
    • OpenSSL eq 0.9.7b..0.9.7b
    • OpenSSL eq 0.9.7c..0.9.7c
    • Red Hat openssl 0.9.7a2 eq 0.9.6-15..0.9.6-15
    • Red Hat openssl 0.9.7a2 eq 0.9.6b-3..0.9.6b-3
    • Red Hat openssl 0.9.7a2 eq 0.9.7a-2..0.9.7a-2
    • SGI ProPack eq 2.3..2.3
    • SGI ProPack eq 2.4..2.4
    • SGI ProPack eq 3.0..3.0
    • Stonesoft Servercluster eq 2.5..2.5
    • Stonesoft Servercluster eq 2.5.2..2.5.2
    • Stonesoft Stonebeat Fullcluster eq 1_2.0..1_2.0
    • Stonesoft Stonebeat Fullcluster eq 1_3.0..1_3.0
    • Stonesoft Stonebeat Fullcluster eq 2.0..2.0
    • Stonesoft Stonebeat Fullcluster eq 2.5..2.5
    • Stonesoft Stonebeat Fullcluster eq 3.0..3.0
    • Stonesoft Stonebeat Securitycluster eq 2.0..2.0
    • Stonesoft Stonebeat Securitycluster eq 2.5..2.5
    • Stonesoft Stonebeat Webcluster eq 2.0..2.0
    • Stonesoft Stonebeat Webcluster eq 2.5..2.5
    • Stonesoft Stonegate eq 1.5.17..1.5.17
    • Stonesoft Stonegate eq 1.5.18..1.5.18
    • Stonesoft Stonegate eq 1.6.2..1.6.2
    • Stonesoft Stonegate eq 1.6.3..1.6.3
    • Stonesoft Stonegate eq 1.7..1.7
    • Stonesoft Stonegate eq 1.7.1..1.7.1
    • Stonesoft Stonegate eq 1.7.2..1.7.2
    • Stonesoft Stonegate eq 2.0.1..2.0.1
    • Stonesoft Stonegate eq 2.0.4..2.0.4
    • Stonesoft Stonegate eq 2.0.5..2.0.5
    • Stonesoft Stonegate eq 2.0.6..2.0.6
    • Stonesoft Stonegate eq 2.0.7..2.0.7
    • Stonesoft Stonegate eq 2.0.8..2.0.8
    • Stonesoft Stonegate eq 2.0.9..2.0.9
    • Stonesoft Stonegate eq 2.1..2.1
    • Stonesoft Stonegate eq 2.2..2.2
    • Stonesoft Stonegate eq 2.2.1..2.2.1
    • Stonesoft Stonegate eq 2.2.4..2.2.4
    • Stonesoft Stonegate VPN Client eq 1.7..1.7
    • Stonesoft Stonegate VPN Client eq 1.7.2..1.7.2
    • Stonesoft Stonegate VPN Client eq 2.0..2.0
    • Stonesoft Stonegate VPN Client eq 2.0.7..2.0.7
    • Stonesoft Stonegate VPN Client eq 2.0.8..2.0.8
    • Stonesoft Stonegate VPN Client eq 2.0.9..2.0.9
    • Tarantella Enterprise eq 3.20..3.20
    • Tarantella Enterprise eq 3.30..3.30
    • Tarantella Enterprise eq 3.40..3.40
    • VMWare VMware GSX Server 2.0.0 build 2050 eq 2.0..2.0
    • VMWare VMware GSX Server 2.0.0 build 2050 eq 2.0.1_build_2129..2.0.1_build_2129
    • VMWare VMware GSX Server 2.0.0 build 2050 eq 2.5.1..2.5.1
    • VMWare VMware GSX Server 2.0.0 build 2050 eq 2.5.1_build_5336..2.5.1_build_5336
    • VMWare VMware GSX Server 2.0.0 build 2050 eq 3.0_build_7592..3.0_build_7592
    • Avaya S8300 eq r2.0.0..r2.0.0
    • Avaya S8300 eq r2.0.1..r2.0.1
    • Avaya S8500 eq r2.0.0..r2.0.0
    • Avaya S8500 eq r2.0.1..r2.0.1
    • Avaya S8700 Series eq r2.0.0..r2.0.0
    • Avaya S8700 Series eq r2.0.1..r2.0.1
    • Cisco Secure Content Accelerator eq 10000..10000
    • Secure Computing Sidewinder eq 5.2..5.2
    • Secure Computing Sidewinder eq 5.2.0.01..5.2.0.01
    • Secure Computing Sidewinder eq 5.2.0.02..5.2.0.02
    • Secure Computing Sidewinder eq 5.2.0.03..5.2.0.03
    • Secure Computing Sidewinder eq 5.2.0.04..5.2.0.04
    • Secure Computing Sidewinder eq 5.2.1..5.2.1
    • Secure Computing Sidewinder eq 5.2.1.02..5.2.1.02
    • Sun Crypto Accelerator 4000 eq 1.0..1.0
    • Bluecoat Cacheos Ca Sa eq 4.1.10..4.1.10
    • Bluecoat Cacheos Ca Sa eq 4.1.12..4.1.12
    • Cisco PIX Firewall Software 6.1.5 (104) eq 6.0..6.0
    • Cisco PIX Firewall Software 6.1.5 (104) eq 6.0\(1\)..6.0\(1\)
    • Cisco PIX Firewall Software 6.1.5 (104) eq 6.0\(2\)..6.0\(2\)
    • Cisco PIX Firewall Software 6.1.5 (104) eq 6.0\(3\)..6.0\(3\)
    • Cisco PIX Firewall Software 6.1.5 (104) eq 6.0\(4\)..6.0\(4\)
    • Cisco PIX Firewall Software 6.1.5 (104) eq 6.0\(4.101\)..6.0\(4.101\)
    • Cisco PIX Firewall Software 6.1.5 (104) eq 6.1..6.1
    • Cisco PIX Firewall Software 6.1.5 (104) eq 6.1\(1\)..6.1\(1\)
    • Cisco PIX Firewall Software 6.1.5 (104) eq 6.1\(2\)..6.1\(2\)
    • Cisco PIX Firewall Software 6.1.5 (104) eq 6.1\(3\)..6.1\(3\)
    • Cisco PIX Firewall Software 6.1.5 (104) eq 6.1\(4\)..6.1\(4\)
    • Cisco PIX Firewall Software 6.1.5 (104) eq 6.1\(5\)..6.1\(5\)
    • Cisco PIX Firewall Software 6.1.5 (104) eq 6.2..6.2
    • Cisco PIX Firewall Software 6.1.5 (104) eq 6.2\(1\)..6.2\(1\)
    • Cisco PIX Firewall Software 6.1.5 (104) eq 6.2\(2\)..6.2\(2\)
    • Cisco PIX Firewall Software 6.1.5 (104) eq 6.2\(3\)..6.2\(3\)
    • Cisco PIX Firewall Software 6.1.5 (104) eq 6.2\(3.100\)..6.2\(3.100\)
    • Cisco PIX Firewall Software 6.1.5 (104) eq 6.3..6.3
    • Cisco PIX Firewall Software 6.1.5 (104) eq 6.3\(1\)..6.3\(1\)
    • Cisco PIX Firewall Software 6.1.5 (104) eq 6.3\(2\)..6.3\(2\)
    • Cisco PIX Firewall Software 6.1.5 (104) eq 6.3\(3.102\)..6.3\(3.102\)
    • Cisco PIX Firewall Software 6.1.5 (104) eq 6.3\(3.109\)..6.3\(3.109\)

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    Metrics

    —

    Priority

    No value is available for this vulnerability.

    —

    CVSS v3

    No value is available for this vulnerability.

    7.2 %

    EPSS score

    Moderate — model estimates 1-10% exploitation likelihood.

    Source: FIRST EPSS, percentile 94.3

    Show all metrics
    Severity
    Not rated
    Priority (0–325)

    The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?

    Read in glossary
    71.14 Methodology
    Exploit maturity

    An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.

    Read in glossary
    no public PoC known
    EPSS score

    The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“.

    Read in glossary
    7.2 %
    Moderate — model estimates 1-10% exploitation likelihood.
    EPSS percentile

    The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking.

    Read in glossary
    94.3
    Critical — this CVE ranks in the top fifth of all CVEs scored today (rank ≥ 80%).
    KEV status

    The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.

    Read in glossary
    —
    Published

    Detection rules

    No NEOSEC detection rule is available for this vulnerability yet.

    Classification under NIS2 and CRA

    Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

    NIS2

    NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.

    Read in glossary
    Handle the vulnerability in regular vulnerability handling under Art. 21(2)(e) NIS2.
    CRA

    The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.

    Read in glossary
    From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
    ISO/IEC 27001

    ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.

    Read in glossary
    Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

    Description

    OpenSSL 0.9.6 before 0.9.6d does not properly handle unknown message types, which allows remote attackers to cause a denial of service (infinite loop), as demonstrated using the Codenomicon TLS Test Tool.

    Source: cvelistv5, NVD (NIST)

    Affected products

    The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

    Affected products
    Affected versionsFixed in
    4dwebstar
    • 5.2.3
    • 4.0
    • 5.2
    • 5.3
    • 5.2.2
    • 5.2.4
    • 5.3.1
    • 5.2.1
    • —
    • —
    • —
    • —
    • —
    • —
    • —
    • —
    avayaconverged_communications_server
    • 2.0
    • —
    avayaintuity_audix
    • —
    • 5.1.46
    • s3400
    • s3210
    • —
    • —
    • —
    • —
    avayas8300
    • r2.0.0
    • r2.0.1
    • —
    • —
    avayas8500
    • r2.0.0
    • r2.0.1
    • —
    • —
    avayas8700
    • r2.0.1
    • r2.0.0
    • —
    • —
    avayasg200
    • 4.4
    • 4.31.29
    • —
    • —
    avayasg203
    • 4.31.29
    • 4.4
    • —
    • —
    avayasg208
    • 4.4
    • —
    • —
    • —
    avayasg5
    • 4.3
    • 4.2
    • 4.4
    • —
    • —
    • —
    avayavsu
    • 500
    • 7500_r2.0.1
    • 5000_r2.0.1
    • 100_r2.0.1
    • 5
    • 10000_r2.0.1
    • 2000_r2.0.1
    • 5x
    • —
    • —
    • —
    • —
    • —
    • —
    • —
    • —
    bluecoatproxysg
    • —
    • —
    checkpointfirewall-1
    • next_generation_fp0
    • next_generation_fp2
    • —
    • next_generation_fp1
    • 2.0
    • —
    • —
    • —
    • —
    • —
    checkpointprovider-1
    • 4.1
    • —
    checkpointvpn-1
    • next_generation_fp1
    • next_generation
    • next_generation_fp0
    • vsx_ng_with_application_intelligence
    • —
    • —
    • —
    • —
    ciscoaccess_registrar
    • —
    • —

    Vendors and products

    Affected operating systems

    Affected operating systems
    BSDfreebsdfreebsd4.8
    BSDfreebsdfreebsd4.9
    BSDfreebsdfreebsd5.1
    BSDfreebsdfreebsd5.2
    BSDfreebsdfreebsd5.2.1
    BSDopenbsdopenbsd3.3
    BSDopenbsdopenbsd3.4
    Linuxredhatenterprise_linux3.0
    Linuxredhatenterprise_linux_desktop3.0
    Linuxredhatlinux7.2
    Linuxredhatlinux7.3
    Linuxredhatlinux8.0
    macOSapplemac_os_x10.3.3
    macOSapplemac_os_x_server10.3.3
    Mobileciscoios12.1\(11b\)e
    Mobileciscoios12.1\(11b\)e12
    Mobileciscoios12.1\(11b\)e14
    Mobileciscoios12.1\(11\)e
    Mobileciscoios12.1\(13\)e9
    Mobileciscoios12.1\(19\)e1
    Mobileciscoios12.2\(14\)sy
    Mobileciscoios12.2\(14\)sy1
    Mobileciscoios12.2sy
    Mobileciscoios12.2za

    References & sources

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