MediumCVE-2022-2097

    AES OCB fails to encrypt some bytes (CVE-2022-2097)

    Published Last modified Sources: BSI, Debian, Siemens ProductCERT, Ubuntu, CVE.org, Msrc Update Guide, OSV

    What is affected, what to do

    AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimised implementation will not encrypt the entirety of the data under some circumstances. This could reveal sixteen bytes of data that was preexisting in the memory that wasn't written.

    Update openssl to version 1.1.1q, sinec_ins to version 1.0, Data Protection Advisor to version 19.12.

    Affected
    • OpenSSL eq Fixed in OpenSSL 3.0.5 (Affected 3.0.0-3.0.4)..Fixed in OpenSSL 3.0.5 (Affected 3.0.0-3.0.4)
    • OpenSSL eq Fixed in OpenSSL 1.1.1q (Affected 1.1.1-1.1.1p)..Fixed in OpenSSL 1.1.1q (Affected 1.1.1-1.1.1p)

    Not sure whether and how you are affected? Ask a question about this vulnerability

    Metrics

    5.3

    Priority

    XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.

    Source: NVD, CVSS v3

    5.3

    CVSS v3

    Severity Medium on the scale from 0 to 10.

    Source: BSI, Debian, Siemens ProductCERT, Ubuntu, CVE.org, Msrc Update Guide, OSV

    4.9 %

    EPSS score

    Moderate — model estimates 1-10% exploitation likelihood.

    Source: FIRST EPSS, percentile 92.1

    Show all metrics
    Severity
    Medium
    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
    95.38 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
    XIEM Effective CVSS

    XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command.

    Read in glossary
    5.3 Methodology
    CVSS v3

    CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions.

    Read in glossary
    5.3
    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
    4.9 %
    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
    92.1
    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
    CISA assessment (SSVC)
    Exploitation: none known · automatable · Technical impact: partial
    Source: CISA Vulnrichment, as of 26 July 2024

    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

    AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimised implementation will not encrypt the entirety of the data under some circumstances. This could reveal sixteen bytes of data that was preexisting in the memory that wasn't written. In the special case of "in place" encryption, sixteen bytes of the plaintext would be revealed. Since OpenSSL does not support OCB based cipher suites for TLS and DTLS, they are both unaffected. Fixed in OpenSSL 3.0.5 (Affected 3.0.0-3.0.4). Fixed in OpenSSL 1.1.1q (Affected 1.1.1-1.1.1p).

    Source: BSI CSAF, BSI WID Portal, Debian Security Advisories, siemens_advisory, Ubuntu Security Notices, cvelistv5, Microsoft Security Update Guide, OSV (Open Source Vulnerabilities), 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
    OpenSSLOpenSSL
    • Fixed in OpenSSL 3.0.5 (Affected 3.0.0-3.0.4)
    • Fixed in OpenSSL 1.1.1q (Affected 1.1.1-1.1.1p)
    • —
    • —
    netappactive_iq_unified_manager
    • —
    • —
    netappclustered_data_ontap_antivirus_connector
    • —
    • —
    opensslopenssl
    • 1.1.1 – < 1.1.1q
    • 3.0.0 – < 3.0.5
    • 1.1.1q
    • 3.0.5
    siemenssinec_ins
    • 1.0
    • < 1.0
    • —
    • 1.0
    DellData Protection Advisor
    • < 19.12
    • 19.12
    DellECS
    • < 3.8.1.0
    • 3.8.1.0

    Vendors and products

    Affected operating systems

    Affected operating systems
    Linuxdebiandebian_linux10.0
    Linuxdebiandebian_linux11.0
    Linuxdebianopensslbullseye
    Linuxubuntuopensslbionic
    Linuxubuntuopensslfocal
    Linuxubuntuopensslimpish
    Linuxubuntuopenssljammy
    Otherfedoraprojectfedora35
    Otherfedoraprojectfedora36
    Othernetapph300s_firmware—
    Othernetapph410c_firmware—
    Othernetapph410s_firmware—
    Othernetapph500s_firmware—
    Othernetapph700s_firmware—

    References & sources

    Changes to this CVE

    Who changed this CVE and when: NVD (analysis, affected products, CVSS), the CVE publisher (CNA) and additional providers such as CISA (ADP).

    1. Record modifiedopenssl.org

      Show 32 original changes
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      Referenceadded
      —
      https://cert-portal.siemens.com/productcert/pdf/ssa-332410.pdf
      Referenceadded
      —
      https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=919925673d6c9cfed3c1085497f5dfbbed5fc431
      Referenceadded
      —
      https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=a98f339ddd7e8f487d6e0088d4a9a42324885a93
      Referenceadded
      —
      https://lists.debian.org/debian-lts-announce/2023/02/msg00019.html
      Referenceadded
      —
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R6CK57NBQFTPUMXAPJURCGXUYT76NQAK/
      Referenceadded
      —
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V6567JERRHHJW2GNGJGKDRNHR7SNPZK7/
      Referenceadded
      —
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VCMNWKERPBKOEBNL7CLTTX3ZZCZLH7XA/
      Referenceadded
      —
      https://security.gentoo.org/glsa/202210-02
      Referenceadded
      —
      https://security.netapp.com/advisory/ntap-20220715-0011/
      Referenceadded
      —
      https://security.netapp.com/advisory/ntap-20230420-0008/
      Referenceadded
      —
      https://security.netapp.com/advisory/ntap-20240621-0006/
      Referenceadded
      —
      https://www.debian.org/security/2023/dsa-5343
      Referenceadded
      —
      https://www.openssl.org/news/secadv/20220705.txt
      Referenceremoved
      https://cert-portal.siemens.com/productcert/pdf/ssa-332410.pdf
      —
      Referenceremoved
      https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=919925673d6c9cfed3c1085497f5dfbbed5fc431
      —
      Referenceremoved
      https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=a98f339ddd7e8f487d6e0088d4a9a42324885a93
      —
      Referenceremoved
      https://lists.debian.org/debian-lts-announce/2023/02/msg00019.html
      —
      Referenceremoved
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R6CK57NBQFTPUMXAPJURCGXUYT76NQAK/
      —
      Referenceremoved
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V6567JERRHHJW2GNGJGKDRNHR7SNPZK7/
      —
      Referenceremoved
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VCMNWKERPBKOEBNL7CLTTX3ZZCZLH7XA/
      —
      Referenceremoved
      https://security.gentoo.org/glsa/202210-02
      —
      Referenceremoved
      https://security.netapp.com/advisory/ntap-20220715-0011/
      —
      Referenceremoved
      https://security.netapp.com/advisory/ntap-20230420-0008/
      —
      Referenceremoved
      https://security.netapp.com/advisory/ntap-20240621-0006/
      —
      Referenceremoved
      https://www.debian.org/security/2023/dsa-5343
      —
      Referenceremoved
      https://www.openssl.org/news/secadv/20220705.txt
      —
      Reference typeremoved
      https://cert-portal.siemens.com/productcert/pdf/ssa-332410.pdf Types: Third Party Advisory
      —
      Reference typeremoved
      https://lists.debian.org/debian-lts-announce/2023/02/msg00019.html Types: Mailing List, Third Party Advisory
      —
      Reference typeremoved
      https://security.gentoo.org/glsa/202210-02 Types: Third Party Advisory
      —
      Reference typeremoved
      https://security.netapp.com/advisory/ntap-20220715-0011/ Types: Third Party Advisory
      —
      Reference typeremoved
      https://www.debian.org/security/2023/dsa-5343 Types: Third Party Advisory
      —
      Reference typeremoved
      https://www.openssl.org/news/secadv/20220705.txt Types: Vendor Advisory
      —

      Source identifier: openssl-security@openssl.org

    2. Record modifiedCVE Program

      Show 32 original changes
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      Referenceadded
      —
      https://cert-portal.siemens.com/productcert/pdf/ssa-332410.pdf
      Referenceadded
      —
      https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=919925673d6c9cfed3c1085497f5dfbbed5fc431
      Referenceadded
      —
      https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=a98f339ddd7e8f487d6e0088d4a9a42324885a93
      Referenceadded
      —
      https://lists.debian.org/debian-lts-announce/2023/02/msg00019.html
      Referenceadded
      —
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R6CK57NBQFTPUMXAPJURCGXUYT76NQAK/
      Referenceadded
      —
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V6567JERRHHJW2GNGJGKDRNHR7SNPZK7/
      Referenceadded
      —
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VCMNWKERPBKOEBNL7CLTTX3ZZCZLH7XA/
      Referenceadded
      —
      https://security.gentoo.org/glsa/202210-02
      Referenceadded
      —
      https://security.netapp.com/advisory/ntap-20220715-0011/
      Referenceadded
      —
      https://security.netapp.com/advisory/ntap-20230420-0008/
      Referenceadded
      —
      https://security.netapp.com/advisory/ntap-20240621-0006/
      Referenceadded
      —
      https://www.debian.org/security/2023/dsa-5343
      Referenceadded
      —
      https://www.openssl.org/news/secadv/20220705.txt
      Referenceremoved
      https://cert-portal.siemens.com/productcert/pdf/ssa-332410.pdf
      —
      Referenceremoved
      https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=919925673d6c9cfed3c1085497f5dfbbed5fc431
      —
      Referenceremoved
      https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=a98f339ddd7e8f487d6e0088d4a9a42324885a93
      —
      Referenceremoved
      https://lists.debian.org/debian-lts-announce/2023/02/msg00019.html
      —
      Referenceremoved
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R6CK57NBQFTPUMXAPJURCGXUYT76NQAK/
      —
      Referenceremoved
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V6567JERRHHJW2GNGJGKDRNHR7SNPZK7/
      —
      Referenceremoved
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VCMNWKERPBKOEBNL7CLTTX3ZZCZLH7XA/
      —
      Referenceremoved
      https://security.gentoo.org/glsa/202210-02
      —
      Referenceremoved
      https://security.netapp.com/advisory/ntap-20220715-0011/
      —
      Referenceremoved
      https://security.netapp.com/advisory/ntap-20230420-0008/
      —
      Referenceremoved
      https://security.netapp.com/advisory/ntap-20240621-0006/
      —
      Referenceremoved
      https://www.debian.org/security/2023/dsa-5343
      —
      Referenceremoved
      https://www.openssl.org/news/secadv/20220705.txt
      —
      Reference typeremoved
      https://cert-portal.siemens.com/productcert/pdf/ssa-332410.pdf Types: Third Party Advisory
      —
      Reference typeremoved
      https://lists.debian.org/debian-lts-announce/2023/02/msg00019.html Types: Mailing List, Third Party Advisory
      —
      Reference typeremoved
      https://security.gentoo.org/glsa/202210-02 Types: Third Party Advisory
      —
      Reference typeremoved
      https://security.netapp.com/advisory/ntap-20220715-0011/ Types: Third Party Advisory
      —
      Reference typeremoved
      https://www.debian.org/security/2023/dsa-5343 Types: Third Party Advisory
      —
      Reference typeremoved
      https://www.openssl.org/news/secadv/20220705.txt Types: Vendor Advisory
      —

      Source identifier: af854a3a-2127-422b-91ae-364da2661108

    3. Record modifiedSiemens ADP

      Show 6 original changes
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      Affected versions (publisher)added
      —
      New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2022/2xxx/CVE-2022-2097.json">CVE-2022-2097</a>
      Referenceadded
      —
      https://cert-portal.siemens.com/productcert/html/ssa-332410.html
      Referenceadded
      —
      https://cert-portal.siemens.com/productcert/html/ssa-398330.html
      Referenceadded
      —
      https://cert-portal.siemens.com/productcert/html/ssa-625862.html
      Referenceadded
      —
      https://cert-portal.siemens.com/productcert/html/ssa-794697.html
      Referenceadded
      —
      https://cert-portal.siemens.com/productcert/html/ssa-879734.html

      Source identifier: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e

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    <a href="https://intel.neosec.eu/en/cve/CVE-2022-2097"><img src="https://intel.neosec.eu/badge/cve/CVE-2022-2097.svg?lang=en" alt="CVE-2022-2097 – NEOSEC Intel" height="20"></a>