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Highest advisory severityMedium 1 vendor · 1 advisory

CVE-2022-1012

CVE-2022-1012: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

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Vendor advisory comparison

Red Hat

1 advisory
  • Advisory severityMedium6.5

    Medium [CVE-2022-1012] Kernel: memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the small table perturb size

    CVE-2022-1012Source published Source updated

    A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of service problem. This flaw allows an attacker to positively distinguish a system among devices with identical hardware and software, which lasts until the device restarts. An attacker can guess the evolution of the internal state used for source port generation. This information is used to infer the TCP traffic patterns of the victim, guessing the number of outgoing TCP connections established in a specific time frame, which can lead to a system fingerprinting. Red Hat Enterprise Linux version 7 (RHEL7) is not affected by this issue. While RHEL7 implements the TCP port randomization…

    Affected products in this advisory
    • Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions
    • Red Hat Enterprise Linux 8.2 Extended Update Support
    • Red Hat Enterprise Linux 8.4 Extended Update Support
    • Red Hat Enterprise Linux 9

    2 more entries in the full advisory.

    Source-reported affected versions
    Affected-version details not available in this record.
    Source-reported fixed versions
    • kernel-rt-0:4.18.0-372.19.1.rt7.176.el8_6
    • kernel-0:4.18.0-372.19.1.el8_6
    • kernel-0:4.18.0-147.70.1.el8_1
    • kernel-rt-0:4.18.0-193.87.1.rt13.137.el8_2

    18 more entries in the full advisory.

    Mitigation guidance
    • Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    Full advisory and evidenceOpen source bulletin

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