{
  "threat_severity" : "Low",
  "public_date" : "2020-11-26T00:00:00Z",
  "bugzilla" : {
    "description" : "QEMU: slirp: out-of-bounds access while processing ARP/NCSI packets",
    "id" : "1902231",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1902231"
  },
  "cvss3" : {
    "cvss3_base_score" : "2.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N",
    "status" : "verified"
  },
  "cwe" : "CWE-125",
  "details" : [ "ncsi.c in libslirp through 4.3.1 has a buffer over-read because it tries to read a certain amount of header data even if that exceeds the total packet length.", "An out-of-bounds access issue was found in the SLiRP user networking implementation of QEMU. It could occur while processing ARP/NCSI packets, if the packet length was shorter than required to accommodate respective protocol headers and payload. A privileged guest user may use this flaw to potentially leak host information bytes." ],
  "acknowledgement" : "Red Hat would like to thank Qiuhao Li for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2021-05-18T00:00:00Z",
    "advisory" : "RHSA-2021:1762",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "virt-devel:rhel-8040020210317013608.9f9e2e7e"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2021-05-18T00:00:00Z",
    "advisory" : "RHSA-2021:1762",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "virt:rhel-8040020210317013608.9f9e2e7e"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Out of support scope",
    "package_name" : "kvm",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "xen",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "package_name" : "qemu-kvm",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Fix deferred",
    "package_name" : "qemu-kvm",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Fix deferred",
    "package_name" : "qemu-kvm-ma",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Fix deferred",
    "package_name" : "qemu-kvm-rhev",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8 Advanced Virtualization",
    "fix_state" : "Affected",
    "package_name" : "virt:8.3/qemu-kvm",
    "cpe" : "cpe:/a:redhat:advanced_virtualization:8::el8"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2020-29129\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-29129\nhttps://www.openwall.com/lists/oss-security/2020/11/27/1" ],
  "name" : "CVE-2020-29129",
  "csaw" : false
}