147 lines
5.9 KiB
JSON
147 lines
5.9 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-2026-129126",
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"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"state": "PUBLISHED",
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"assignerShortName": "VulnCheck",
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"dateReserved": "2026-11-13T16:01:01.879Z",
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"datePublished": "2026-11-13T16:23:41.944Z",
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"dateUpdated": "2026-11-13T16:23:41.944Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"shortName": "VulnCheck",
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"dateUpdated": "2026-11-13T16:23:41.944Z"
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},
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"datePublic": "2026-10-31T00:00:00.000Z",
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"title": "C-Kermit before 11.1.515 Heap Buffer Overflow via putsrv() Packet Decoding",
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"descriptions": [
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{
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"lang": "en",
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"value": "C-Kermit before 11.1.515 contains a heap buffer overflow vulnerability in putsrv() in ckcfns.c that allows malicious peers to write past the srvcmd buffer by sending crafted packets. Attackers can use Kermit repeat-count compression in server command, GET, or file-header packets to write attacker-chosen bytes beyond the heap buffer on servers or receiving instances."
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"description": "Heap-based Buffer Overflow",
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"cweId": "CWE-122",
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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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"affected": [
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{
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"vendor": "OpenKermit",
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"product": "C-Kermit",
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"defaultStatus": "unaffected",
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"versions": [
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{
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"version": "0",
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"status": "affected",
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"lessThan": "11.1.515",
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"versionType": "semver"
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}
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],
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"packageURL": "pkg:github/OpenKermit/ckermit"
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}
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],
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"metrics": [
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{
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"format": "CVSS",
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"cvssV4_0": {
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"version": "4.0",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "PRESENT",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "HIGH",
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"vulnAvailabilityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 9.2,
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"baseSeverity": "CRITICAL"
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}
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},
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{
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"format": "CVSS",
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"attackVector": "NETWORK",
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"attackComplexity": "HIGH",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"availabilityImpact": "HIGH",
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"baseScore": 8.1,
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"baseSeverity": "HIGH"
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}
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}
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],
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"references": [
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{
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"url": "https://github.com/OpenKermit/ckermit/security/advisories/GHSA-c5px-7h4c-gj8p",
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"tags": [
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"vendor-advisory"
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],
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"name": "GitHub Security Advisory (GHSA-c5px-7h4c-gj8p)"
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},
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{
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"url": "https://github.com/OpenKermit/ckermit/commit/37e54720779237897bc6887efac42fe138817897",
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"tags": [
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"patch"
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]
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},
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{
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"url": "https://github.com/OpenKermit/ckermit/releases/tag/v11.1.515",
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"tags": [
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"release-notes"
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],
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"name": "C-Kermit v11.1.515 Release Notes"
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},
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{
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"url": "https://github.com/OpenKermit/ckermit/blob/v11.0.514/ckcfns.c#L461",
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"tags": [
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"technical-description"
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]
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},
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{
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"name": "VulnCheck Advisory: C-Kermit before 11.1.515 Heap Buffer Overflow via putsrv() Packet Decoding",
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"tags": [
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"third-party-advisory"
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],
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"url": "https://www.vulncheck.com/advisories/c-kermit-before-11.1.515-heap-buffer-overflow-via-putsrv-packet-decoding"
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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": "John Goerzen",
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"type": "finder"
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},
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{
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"lang": "en",
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"value": "John Goerzen",
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"type": "remediation developer"
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}
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],
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"x_generator": {
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"engine": "vulncheck-endgame"
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}
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}
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}
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} |