VULN/vuln-cve
1
0 Fork 0
Code Pull Requests Actions 1 Activity
Files
c1444140e59c61ba154436ea0cd6284d8a97c3f0
vuln-cve/data/2026/53xxx/CVE-2026-53268.json
T

474 lines
23 KiB
JSON
Raw Blame History

{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-53268",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2026-06-09T07:44:35.395Z",
"datePublished": "2026-06-25T08:39:54.511Z",
"dateUpdated": "2026-11-10T12:48:24.340Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-08-05T12:34:45.538Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: conntrack_irc: fix possible out-of-bounds read\n\nWhen parsing fails after we've matched the command string we\nshould bail out instead of trying to match a different command.\n\nThis helper should be deprecated, given prevalence of TLS I doubt it has\nany relevance in 2026."
}
],
"metrics": [
{
"cvssV3_1": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
"baseScore": 8.2,
"baseSeverity": "HIGH"
},
"scenarios": [
{
"lang": "en",
"value": "AV:N - The vulnerable IRC conntrack helper parses attacker-controlled TCP payloads on network flows when the helper is attached, such as an IRC-exposed host or firewall/NAT deployment. A remote peer can establish the TCP flow and send the crafted IRC/CTCP DCC text that reaches `help()`.\nAC:L - Once the helper is enabled/assigned, triggering is deterministic packet parsing with attacker-controlled payload bytes and no race or hard-to-shape kernel state. The established-flow requirement is attacker-controlled by completing a normal TCP handshake.\nPR:N - The network attacker does not need local credentials or authenticated IRC privileges to send payload on a tracked TCP connection. Helper configuration requires administrative privileges, but that is deployment state, not attacker privilege.\nUI:N - No victim user action is needed after the vulnerable helper is active on the network path. The attacker only sends network traffic.\nS:U - The impact is within the kernel/netfilter security authority of the affected system. There is no VM, IOMMU, or separate security-scope boundary crossed.\nC:L - This is an out-of-bounds read from the IRC payload buffer/parser state, but the overread is constrained by short command comparisons and parser checks rather than an arbitrary kernel memory read primitive. Under the higher-severity tie-break rule, limited confidentiality impact is appropriate for the possible stale/adjacent-byte exposure.\nI:N - The bug is a read-side parser bounds error and does not write attacker-controlled data to kernel memory or provide a direct modification primitive. Any conntrack expectation changes require passing the helper's normal DCC validation path and are not arbitrary integrity compromise.\nA:H - The malformed payload can drive `memcmp()`/parser reads beyond the valid copied payload window, and with large/nonlinear packets this can go past the helper's guard byte and plausibly fault/oops in kernel context. The packet can be resent repeatedly for denial of service."
}
]
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/netfilter/nf_conntrack_irc.c"
],
"versions": [
{
"version": "869f37d8e48f3911eb70f38a994feaa8f8380008",
"lessThan": "4cdda7f868f48e2f81579371584fdbdce37df2c8",
"status": "affected",
"versionType": "git"
},
{
"version": "869f37d8e48f3911eb70f38a994feaa8f8380008",
"lessThan": "8a1d6e40dedfe1068aee094d851bd69e289c9fd6",
"status": "affected",
"versionType": "git"
},
{
"version": "869f37d8e48f3911eb70f38a994feaa8f8380008",
"lessThan": "0afc802160af0df61ed374fdb97fb34cfe5cdf2f",
"status": "affected",
"versionType": "git"
},
{
"version": "869f37d8e48f3911eb70f38a994feaa8f8380008",
"lessThan": "7c34f91305292083253df6a9f6c8ede02d4ccaea",
"status": "affected",
"versionType": "git"
},
{
"version": "869f37d8e48f3911eb70f38a994feaa8f8380008",
"lessThan": "ddddd8271359961e403d11c90c9ba9fc38914f7e",
"status": "affected",
"versionType": "git"
},
{
"version": "869f37d8e48f3911eb70f38a994feaa8f8380008",
"lessThan": "9e5da2379f968a3ea5a6e38921ab6201576466dc",
"status": "affected",
"versionType": "git"
},
{
"version": "869f37d8e48f3911eb70f38a994feaa8f8380008",
"lessThan": "573810f61bcd6b6815e2ff53bbdd2b9c9d747176",
"status": "affected",
"versionType": "git"
},
{
"version": "869f37d8e48f3911eb70f38a994feaa8f8380008",
"lessThan": "66eba0ffce3b7e11449946b4cbbef8ea36112f56",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/netfilter/nf_conntrack_irc.c"
],
"versions": [
{
"version": "2.6.20",
"status": "affected"
},
{
"version": "0",
"lessThan": "2.6.20",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.259",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.210",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.176",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.143",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.94",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.18.36",
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.0.13",
"lessThanOrEqual": "7.0.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.1",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.20",
"versionEndExcluding": "5.10.259"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.20",
"versionEndExcluding": "5.15.210"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.20",
"versionEndExcluding": "6.1.176"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.20",
"versionEndExcluding": "6.6.143"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.20",
"versionEndExcluding": "6.12.94"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.20",
"versionEndExcluding": "6.18.36"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.20",
"versionEndExcluding": "7.0.13"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.20",
"versionEndExcluding": "7.1"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/4cdda7f868f48e2f81579371584fdbdce37df2c8"
},
{
"url": "https://git.kernel.org/stable/c/8a1d6e40dedfe1068aee094d851bd69e289c9fd6"
},
{
"url": "https://git.kernel.org/stable/c/0afc802160af0df61ed374fdb97fb34cfe5cdf2f"
},
{
"url": "https://git.kernel.org/stable/c/7c34f91305292083253df6a9f6c8ede02d4ccaea"
},
{
"url": "https://git.kernel.org/stable/c/ddddd8271359961e403d11c90c9ba9fc38914f7e"
},
{
"url": "https://git.kernel.org/stable/c/9e5da2379f968a3ea5a6e38921ab6201576466dc"
},
{
"url": "https://git.kernel.org/stable/c/573810f61bcd6b6815e2ff53bbdd2b9c9d747176"
},
{
"url": "https://git.kernel.org/stable/c/66eba0ffce3b7e11449946b4cbbef8ea36112f56"
}
],
"title": "netfilter: conntrack_irc: fix possible out-of-bounds read",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"x_adpType": "supplier",
"providerMetadata": {
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP",
"dateUpdated": "2026-11-10T12:48:24.340Z"
},
"affected": [
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)",
"versions": [
{
"status": "affected",
"version": "V3.1.6",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)",
"versions": [
{
"status": "affected",
"version": "V3.1.7",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)",
"versions": [
{
"status": "affected",
"version": "V3.1.6",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)",
"versions": [
{
"status": "affected",
"version": "V3.1.7",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)",
"versions": [
{
"status": "affected",
"version": "V3.1.6",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)",
"versions": [
{
"status": "affected",
"version": "V3.1.7",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)",
"versions": [
{
"status": "affected",
"version": "V3.1.6",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)",
"versions": [
{
"status": "affected",
"version": "V3.1.7",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)",
"versions": [
{
"status": "affected",
"version": "V3.1.6",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)",
"versions": [
{
"status": "affected",
"version": "V3.1.7",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
}
],
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"
}
]
},
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2026-53268",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-10-16T15:28:10.286527Z"
}
}
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"type": "CWE",
"cweId": "CWE-125",
"description": "CWE-125 Out-of-bounds Read"
}
]
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-10-19T19:57:32.850Z"
}
}
]
}
}
View Git Blame Copy Permalink