HighCVE-2024-49894

    Linux Kernel: Out-of-Bounds Access (CVE-2024-49894)

    Published Last modified Sources: Siemens ProductCERT, Debian LTS, SUSE, BSI, CVE.org, Msrc Update Guide, EUVD

    What is affected, what to do

    In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix index out of bounds in degamma hardware format translation Fixes index out of bounds issue in `cm_helper_translate_curve_to_degamma_hw_format` function. The issue could occur when the index 'i' exceeds the number of transfer function points (TRANSFER_FUNC_POINTS).

    Update Linux Kernel to version 4.19.323, Linux Kernel to version 5.4.285, Linux Kernel to version 5.10.227.

    Affected
    • Linux Kernel lt 4.15..4.19.323
    • Linux Kernel lt 4.20..5.4.285
    • Linux Kernel lt 5.5..5.10.227
    • Linux Kernel lt 5.11..5.15.168
    • Linux Kernel lt 5.16..6.1.113
    • Linux Kernel lt 6.2..6.6.55
    • Linux Kernel lt 6.7..6.10.14
    • Linux Kernel lt 6.11..6.11.3
    Fixed in
    • Linux Kernel 4.19.323
    • Linux Kernel 5.4.285
    • Linux Kernel 5.10.227
    • Linux Kernel 5.15.168
    • Linux Kernel 6.1.113
    • Linux Kernel 6.6.55
    • Linux Kernel 6.10.14
    • Linux Kernel 6.11.3
    • Linux Kernel 6.12

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

    Metrics

    7.8

    Priority

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

    Source: NVD, CVSS v3

    7.1

    CVSS v3

    Severity High on the scale from 0 to 10.

    Source: Siemens ProductCERT, Debian LTS, SUSE, BSI, CVE.org, Msrc Update Guide, EUVD

    0.3 %

    EPSS score

    Low — model estimates < 1% exploitation likelihood.

    Source: FIRST EPSS, percentile 25.7

    Show all metrics
    Severity
    High
    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
    47.40 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
    7.8 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
    7.1
    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
    0.3 %
    Low — model estimates < 1% 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
    25.7
    Elevated — this CVE ranks above at least 10% of all CVEs scored today.
    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
    High technical severity: assess and remediate the vulnerability in vulnerability handling under Art. 21(2)(e) NIS2 and document the decision.
    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

    In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix index out of bounds in degamma hardware format translation Fixes index out of bounds issue in `cm_helper_translate_curve_to_degamma_hw_format` function. The issue could occur when the index 'i' exceeds the number of transfer function points (TRANSFER_FUNC_POINTS). The fix adds a check to ensure 'i' is within bounds before accessing the transfer function points. If 'i' is out of bounds the function returns false to indicate an error. Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:594 cm_helper_translate_curve_to_degamma_hw_format() error: buffer overflow 'output_tf->tf_pts.red' 1025 <= s32max drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:595 cm_helper_translate_curve_to_degamma_hw_format() error: buffer overflow 'output_tf->tf_pts.green' 1025 <= s32max drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:596 cm_helper_translate_curve_to_degamma_hw_format() error: buffer overflow 'output_tf->tf_pts.blue' 1025 <= s32max

    Source: siemens_advisory, Debian LTS Advisories, suse_csaf, BSI WID Portal, BSI CSAF, cvelistv5, NVD (NIST), Microsoft Security Update Guide, CVE.org (MITRE), ENISA EUVD

    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
    LinuxLinux
    • 6.2 – < 6.6.55
    • 5.16 – < 6.1.113
    • 6.11 – < 6.11.3
    • 4.15 – < 4.19.323
    • 5.11 – < 5.15.168
    • 5.5 – < 5.10.227
    • 6.7 – < 6.10.14
    • 4.20 – < 5.4.285
    • —
    • 6.6.55
    • 6.1.113
    • 6.11.3
    • 4.19.323
    • 5.15.168
    • 5.10.227
    • 6.10.14
    • 5.4.285
    • 6.12

    Vendors and products

    Affected operating systems

    Affected operating systems
    Linuxdebiandebian_linux11.0
    Linuxdebianlinuxbullseye
    Linuxdebianlinux-6.1bullseye
    Linuxlinuxlinux_kernel—
    Othersiemenssimatic_s7-1500_tm_mfp_firmware1.1
    Othersiemenssinec_os—

    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 modifiedLinux

      Show 27 original changes
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      Referenceadded
      —
      https://git.kernel.org/stable/c/07078fa5d589a7fbce8f81ea8acf7aa0021ab38e
      Referenceadded
      —
      https://git.kernel.org/stable/c/122e3a7a8c7bcbe3aacddd6103f67f9f36bed473
      Referenceadded
      —
      https://git.kernel.org/stable/c/2495c8e272d84685403506833a664fad932e453a
      Referenceadded
      —
      https://git.kernel.org/stable/c/2f5da549535be8ccd2ab7c9abac8562ad370b181
      Referenceadded
      —
      https://git.kernel.org/stable/c/b3dfa878257a7e98830b3009ca5831a01d8f85fc
      Referenceadded
      —
      https://git.kernel.org/stable/c/b7e99058eb2e86aabd7a10761e76cae33d22b49f
      Referenceadded
      —
      https://git.kernel.org/stable/c/c130a3c09e3746c1a09ce26c20d21d449d039b1d
      Referenceadded
      —
      https://git.kernel.org/stable/c/c6979719012a90e5b8e3bc31725fbfdd0b9b2b79
      Referenceadded
      —
      https://git.kernel.org/stable/c/f5f6d90087131812c1e4b9d3103f400f1624396d
      Referenceremoved
      https://git.kernel.org/stable/c/07078fa5d589a7fbce8f81ea8acf7aa0021ab38e
      —
      Referenceremoved
      https://git.kernel.org/stable/c/122e3a7a8c7bcbe3aacddd6103f67f9f36bed473
      —
      Referenceremoved
      https://git.kernel.org/stable/c/2495c8e272d84685403506833a664fad932e453a
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      Referenceremoved
      https://git.kernel.org/stable/c/2f5da549535be8ccd2ab7c9abac8562ad370b181
      —
      Referenceremoved
      https://git.kernel.org/stable/c/b3dfa878257a7e98830b3009ca5831a01d8f85fc
      —
      Referenceremoved
      https://git.kernel.org/stable/c/b7e99058eb2e86aabd7a10761e76cae33d22b49f
      —
      Referenceremoved
      https://git.kernel.org/stable/c/c130a3c09e3746c1a09ce26c20d21d449d039b1d
      —
      Referenceremoved
      https://git.kernel.org/stable/c/c6979719012a90e5b8e3bc31725fbfdd0b9b2b79
      —
      Referenceremoved
      https://git.kernel.org/stable/c/f5f6d90087131812c1e4b9d3103f400f1624396d
      —
      Reference typeremoved
      https://git.kernel.org/stable/c/07078fa5d589a7fbce8f81ea8acf7aa0021ab38e Types: Patch
      —
      Reference typeremoved
      https://git.kernel.org/stable/c/122e3a7a8c7bcbe3aacddd6103f67f9f36bed473 Types: Patch
      —
      Reference typeremoved
      https://git.kernel.org/stable/c/2495c8e272d84685403506833a664fad932e453a Types: Patch
      —
      Reference typeremoved
      https://git.kernel.org/stable/c/2f5da549535be8ccd2ab7c9abac8562ad370b181 Types: Patch
      —
      Reference typeremoved
      https://git.kernel.org/stable/c/b3dfa878257a7e98830b3009ca5831a01d8f85fc Types: Patch
      —
      Reference typeremoved
      https://git.kernel.org/stable/c/b7e99058eb2e86aabd7a10761e76cae33d22b49f Types: Patch
      —
      Reference typeremoved
      https://git.kernel.org/stable/c/c130a3c09e3746c1a09ce26c20d21d449d039b1d Types: Patch
      —
      Reference typeremoved
      https://git.kernel.org/stable/c/c6979719012a90e5b8e3bc31725fbfdd0b9b2b79 Types: Patch
      —
      Reference typeremoved
      https://git.kernel.org/stable/c/f5f6d90087131812c1e4b9d3103f400f1624396d Types: Patch
      —

      Source identifier: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    2. Record modifiedCVE Program

      Show 6 original changes
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      Referenceadded
      —
      https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
      Referenceadded
      —
      https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
      Referenceremoved
      https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
      —
      Referenceremoved
      https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
      —
      Reference typeremoved
      https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html Types: Mailing List, Third Party Advisory
      —
      Reference typeremoved
      https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html Types: Mailing List, Third Party Advisory
      —

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

    3. Record modifiedSiemens ADP

      Show 7 original changes
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      Affected versions (publisher)added
      —
      Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2024/49xxx/CVE-2024-49894.json">CVE-2024-49894</a>
      Referenceadded
      —
      https://cert-portal.siemens.com/productcert/html/ssa-265688.html
      Referenceadded
      —
      https://cert-portal.siemens.com/productcert/html/ssa-355557.html
      Referenceremoved
      https://cert-portal.siemens.com/productcert/html/ssa-265688.html
      —
      Referenceremoved
      https://cert-portal.siemens.com/productcert/html/ssa-355557.html
      —
      Reference typeremoved
      https://cert-portal.siemens.com/productcert/html/ssa-265688.html Types: Third Party Advisory
      —
      Reference typeremoved
      https://cert-portal.siemens.com/productcert/html/ssa-355557.html Types: Third Party Advisory
      —

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

    4. Record modifiedLinux

      CVSS V3.1: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

      Show the original change
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      CVSSadded
      —
      AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

      Source identifier: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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