cve-2023-3812
Vulnerability from cvelistv5
Published
2023-07-24 15:19
Modified
2024-11-15 16:30
Summary
An out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user generates a malicious (too big) networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate their privileges on the system.
References
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:6799Third Party Advisory, VDB Entry
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:6813Third Party Advisory, VDB Entry
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:7370Third Party Advisory, VDB Entry
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:7379Third Party Advisory, VDB Entry
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:7382Third Party Advisory, VDB Entry
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:7389Third Party Advisory, VDB Entry
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:7411Third Party Advisory, VDB Entry
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:7418Third Party Advisory, VDB Entry
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:7548Third Party Advisory, VDB Entry
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:7549Third Party Advisory, VDB Entry
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:7554Third Party Advisory, VDB Entry
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:0340
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:0378
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:0412
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:0461
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:0554
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:0562
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:0563
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:0575
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:0593
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:1961
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:2006
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:2008
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2023-3812Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2224048Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=363a5328f4b0Patch
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:6799Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:6813Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:7370Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:7379Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:7382Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:7389Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:7411Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:7418Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:7548Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:7549Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:7554Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:0340
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:0378
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:0412
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:0461
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:0554
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:0562
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:0563
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:0575
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:0593
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:1961
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:2006
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:2008
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2023-3812Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2224048Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=363a5328f4b0Patch
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-513.9.1.el8_9   < *
    cpe:/a:redhat:enterprise_linux:8::crb
    cpe:/o:redhat:enterprise_linux:8::baseos
Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8::baseos
Red Hat Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions     cpe:/o:redhat:rhel_e4s:8.1::baseos
Red Hat Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions Unaffected: 0:4.18.0-147.94.1.el8_1   < *
    cpe:/o:redhat:rhel_e4s:8.1::baseos
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support Unaffected: 0:4.18.0-193.133.1.el8_2   < *
    cpe:/o:redhat:rhel_aus:8.2::baseos
    cpe:/o:redhat:rhel_tus:8.2::baseos
    cpe:/o:redhat:rhel_e4s:8.2::baseos
Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service Unaffected: 0:4.18.0-193.133.1.rt13.184.el8_2   < *
    cpe:/a:redhat:rhel_tus:8.2::nfv
    cpe:/a:redhat:rhel_tus:8.2::realtime
Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service Unaffected: 0:4.18.0-193.133.1.el8_2   < *
    cpe:/o:redhat:rhel_aus:8.2::baseos
    cpe:/o:redhat:rhel_tus:8.2::baseos
    cpe:/o:redhat:rhel_e4s:8.2::baseos
Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions     cpe:/o:redhat:rhel_e4s:8.2::baseos
Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions Unaffected: 0:4.18.0-193.133.1.el8_2   < *
    cpe:/o:redhat:rhel_aus:8.2::baseos
    cpe:/o:redhat:rhel_tus:8.2::baseos
    cpe:/o:redhat:rhel_e4s:8.2::baseos
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:4.18.0-305.120.1.el8_4   < *
    cpe:/o:redhat:rhel_aus:8.4::baseos
    cpe:/o:redhat:rhel_tus:8.4::baseos
    cpe:/o:redhat:rhel_e4s:8.4::baseos
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service Unaffected: 0:4.18.0-305.120.1.rt7.196.el8_4   < *
    cpe:/a:redhat:rhel_tus:8.4::nfv
    cpe:/a:redhat:rhel_tus:8.4::realtime
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service Unaffected: 0:4.18.0-305.120.1.el8_4   < *
    cpe:/o:redhat:rhel_aus:8.4::baseos
    cpe:/o:redhat:rhel_tus:8.4::baseos
    cpe:/o:redhat:rhel_e4s:8.4::baseos
Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions Unaffected: 0:4.18.0-305.120.1.el8_4   < *
    cpe:/o:redhat:rhel_aus:8.4::baseos
    cpe:/o:redhat:rhel_tus:8.4::baseos
    cpe:/o:redhat:rhel_e4s:8.4::baseos
Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions     cpe:/o:redhat:rhel_e4s:8.4::baseos
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support     cpe:/o:redhat:rhel_eus:8.6::baseos
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Unaffected: 0:4.18.0-372.87.1.el8_6   < *
    cpe:/o:redhat:rhel_eus:8.6::baseos
    cpe:/a:redhat:rhel_eus:8.6::crb
    cpe:/o:redhat:rhev_hypervisor:4.4::el8
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support     cpe:/o:redhat:rhel_eus:8.8::baseos
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support Unaffected: 0:4.18.0-477.43.1.el8_8   < *
    cpe:/o:redhat:rhel_eus:8.8::baseos
    cpe:/a:redhat:rhel_eus:8.8::crb
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:5.14.0-362.18.1.el9_3   < *
    cpe:/a:redhat:enterprise_linux:9::crb
    cpe:/a:redhat:enterprise_linux:9::realtime
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/o:redhat:enterprise_linux:9::baseos
    cpe:/a:redhat:enterprise_linux:9::nfv
Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9::baseos
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:5.14.0-362.18.1.el9_3   < *
    cpe:/a:redhat:enterprise_linux:9::crb
    cpe:/a:redhat:enterprise_linux:9::realtime
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/o:redhat:enterprise_linux:9::baseos
    cpe:/a:redhat:enterprise_linux:9::nfv
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support Unaffected: 0:5.14.0-70.80.1.el9_0   < *
    cpe:/a:redhat:rhel_eus:9.0::crb
    cpe:/o:redhat:rhel_eus:9.0::baseos
    cpe:/a:redhat:rhel_eus:9.0::appstream
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support Unaffected: 0:5.14.0-70.80.1.rt21.151.el9_0   < *
    cpe:/a:redhat:rhel_eus:9.0::realtime
    cpe:/a:redhat:rhel_eus:9.0::nfv
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support     cpe:/o:redhat:rhel_eus:9.0::baseos
Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support Unaffected: 0:5.14.0-284.40.1.el9_2   < *
    cpe:/o:redhat:rhel_eus:9.2::baseos
    cpe:/a:redhat:rhel_eus:9.2::crb
    cpe:/a:redhat:rhel_eus:9.2::appstream
Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support Unaffected: 0:5.14.0-284.40.1.rt14.325.el9_2   < *
    cpe:/a:redhat:rhel_eus:9.2::realtime
    cpe:/a:redhat:rhel_eus:9.2::nfv
Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support     cpe:/o:redhat:rhel_eus:9.2::baseos
Red Hat Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-372.87.1.el8_6   < *
    cpe:/o:redhat:rhel_eus:8.6::baseos
    cpe:/a:redhat:rhel_eus:8.6::crb
    cpe:/o:redhat:rhev_hypervisor:4.4::el8
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
Show details on NVD website


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          "time": "2022-10-22T00:00:00+00:00",
          "value": "Made public."
        }
      ],
      "title": "Kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags",
      "workarounds": [
        {
          "lang": "en",
          "value": "To mitigate this issue, prevent the tun module from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically."
        }
      ],
      "x_redhatCweChain": "(CWE-416|CWE-787): Use After Free or Out-of-bounds Write"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2023-3812",
    "datePublished": "2023-07-24T15:19:21.817Z",
    "dateReserved": "2023-07-20T13:02:44.826Z",
    "dateUpdated": "2024-11-15T16:30:01.571Z",
    "state": "PUBLISHED"
  },
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  }
}


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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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