291 lines
12 KiB
JSON
291 lines
12 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-93006",
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"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
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"state": "PUBLISHED",
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"dateReserved": "2026-09-17T14:35:34.562Z",
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"datePublished": "2026-10-29T12:47:23.431Z",
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"dateUpdated": "2026-11-06T01:50:32.484Z"
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},
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"containers": {
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"cna": {
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"title": "Dnsmasq: dnsmasq: tftp prefetch cache keyed on stale heap pointer serves wrong file content",
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"metrics": [
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{
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"other": {
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},
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"type": "Red Hat severity rating"
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}
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{
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"cvssV3_1": {
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"attackComplexity": "HIGH",
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"attackVector": "ADJACENT_NETWORK",
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"availabilityImpact": "NONE",
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"baseScore": 6.8,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
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}
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"descriptions": [
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{
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"lang": "en",
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"value": "A flaw was found in dnsmasq. The TFTP server can serve the wrong file contents because a recently used transfer cache is not invalidated when a transfer finishes. An attacker on the local network who can request a TFTP file may cause a later client to receive previously cached data instead of the requested file. In PXE network-boot environments this can substitute attacker-chosen boot content for a victim machine."
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}
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"affected": [
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{
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"vendor": "Red Hat",
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"product": "Red Hat Ceph Storage 9",
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{
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"vendor": "Red Hat",
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"product": "Red Hat Enterprise Linux 10",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "dnsmasq",
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"defaultStatus": "affected",
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"product": "Red Hat Enterprise Linux 7",
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"packageName": "dnsmasq",
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"packageName": "dnsmasq",
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"cpe:/a:redhat:enterprise_linux:9"
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"cpe:/a:redhat:openshift:4"
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{
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{
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{
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{
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"vendor": "Red Hat",
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"product": "Red Hat OpenShift Container Platform 5",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "openshift5/ose-baremetal-runtimecfg-rhel9",
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"defaultStatus": "affected",
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"cpe:/a:redhat:openshift:5"
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{
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{
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"vendor": "Red Hat",
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"product": "Red Hat OpenStack Platform 13 (Queens)",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "dnsmasq",
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"defaultStatus": "affected",
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"cpes": [
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"cpe:/a:redhat:openstack:13"
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{
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"vendor": "Red Hat",
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"product": "Red Hat OpenStack Platform 18.0",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "rhoso-operators/infra-rhel9-operator",
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"cpe:/a:redhat:openstack:18.0"
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],
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"references": [
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{
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"url": "https://access.redhat.com/security/cve/CVE-2026-93006",
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"tags": [
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},
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{
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2536075",
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"name": "RHBZ#2536075",
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"tags": [
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"issue-tracking",
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}
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],
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"datePublic": "2026-10-28T09:32:00.000Z",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-672",
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"description": "Operation on a Resource after Expiration or Release",
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"lang": "en",
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"type": "CWE"
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}
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]
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}
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],
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"x_redhatCweChain": "CWE-672: Operation on a Resource after Expiration or Release",
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"workarounds": [
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{
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"lang": "en",
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"value": "The following measures reduce risk:\n\n1. If TFTP is not required, do not enable it. Remove --enable-tftp from the dnsmasq configuration.\n2. If TFTP is required, restrict it with --tftp-interface=<interface> and avoid running TFTP-only instances that serve untrusted clients on the same network.\n3. Compile without TFTP support using COPTS=-DNO_TFTP if TFTP is not needed."
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}
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],
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"timeline": [
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{
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"lang": "en",
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"time": "2026-09-14T00:00:00.000Z",
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"value": "Reported to Red Hat."
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},
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{
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"lang": "en",
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"time": "2026-10-28T09:32:00.000Z",
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"value": "Made public."
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}
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],
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"credits": [
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{
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"lang": "en",
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"value": "Red Hat would like to thank Shubham Raj (Causal Security) for reporting this issue."
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}
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],
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"dateUpdated": "2026-11-06T01:50:32.484Z"
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"metrics": [
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"content": {
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"timestamp": "2026-11-02T20:54:51.133440Z",
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"id": "CVE-2026-93006",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "total"
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],
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}
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} |