396 lines
19 KiB
JSON
396 lines
19 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dateReserved": "2026-08-06T11:45:02.140Z",
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"version": "aba0fe8c2d700bf4ac94607cf7f00e53bbe4042d",
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{
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"criteria": "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*",
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"credits": [
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{
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"lang": "en",
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"type": "finder",
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"value": "Eric Meadows-Jönsson"
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},
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{
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"lang": "en",
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"type": "finder",
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"value": "Jonatan Männchen / EEF"
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{
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"lang": "en",
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"type": "remediation developer",
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"value": "Konrad Pietrzak / Ericsson"
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"value": "<p>Improper Validation of Specified Quantity in Input vulnerability in Erlang/OTP snmp allows a remote attacker to degrade availability by sending an SNMP message containing a BER INTEGER whose length field is arbitrarily large.</p>\n<p><code>snmp_pdus:dec_integer_notag/1</code> defaults its size limit to <code>infinity</code>, and <code>do_dec_integer_notag/2</code> then accumulates the value across every declared byte with a recursive shift and bitwise or. Work grows superlinearly in the declared length because each operation acts on a progressively larger bignum. The size-limited variant <code>dec_integer_notag/2</code> exists but is reached from only one call site, <code>dec_snmp_version/1</code>, which bounds the version field to ten bytes; the request identifier, error status and index, generic and specific trap fields, engine boots and time, and every varbind value decoded by <code>dec_value/1</code> all use the unbounded form. The decode runs before the PDU is processed, so no valid request is required beyond what the deployment demands to accept the message at all.</p>\n<p>This issue affects OTP from OTP 17.0 before OTP 27.3.4.17, OTP 28.5.0.6, and OTP 29.0.6, corresponding to snmp from 4.25.1 before 5.18.2.1, 5.20.2.2, and 5.20.5. Whether OTP before OTP 17.0, corresponding to snmp before 4.25.1, is affected is unknown.</p>"
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"value": "Improper Validation of Specified Quantity in Input vulnerability in Erlang/OTP snmp allows a remote attacker to degrade availability by sending an SNMP message containing a BER INTEGER whose length field is arbitrarily large.\n\n`snmp_pdus:dec_integer_notag/1` defaults its size limit to `infinity`, and `do_dec_integer_notag/2` then accumulates the value across every declared byte with a recursive shift and bitwise or. Work grows superlinearly in the declared length because each operation acts on a progressively larger bignum. The size-limited variant `dec_integer_notag/2` exists but is reached from only one call site, `dec_snmp_version/1`, which bounds the version field to ten bytes; the request identifier, error status and index, generic and specific trap fields, engine boots and time, and every varbind value decoded by `dec_value/1` all use the unbounded form. The decode runs before the PDU is processed, so no valid request is required beyond what the deployment demands to accept the message at all.\n\nThis issue affects OTP from OTP 17.0 before OTP 27.3.4.17, OTP 28.5.0.6, and OTP 29.0.6, corresponding to snmp from 4.25.1 before 5.18.2.1, 5.20.2.2, and 5.20.5. Whether OTP before OTP 17.0, corresponding to snmp before 4.25.1, is affected is unknown."
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}
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"impacts": [
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{
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"capecId": "CAPEC-231",
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"lang": "en",
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"value": "CAPEC-231 Oversized Serialized Data Payloads"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV4_0": {
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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"attackComplexity": "LOW",
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"attackRequirements": "PRESENT",
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"attackVector": "NETWORK",
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"baseScore": 6.3,
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"baseSeverity": "MEDIUM",
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"privilegesRequired": "NONE",
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"providerUrgency": "NOT_DEFINED",
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"subAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"userInteraction": "NONE",
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"valueDensity": "NOT_DEFINED",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
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"version": "4.0",
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"vulnAvailabilityImpact": "LOW",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "NONE",
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"vulnerabilityResponseEffort": "NOT_DEFINED"
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},
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"format": "CVSS",
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"scenarios": [
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"lang": "en",
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"value": "GENERAL"
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],
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"problemTypes": [
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"cweId": "CWE-1284",
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"description": "CWE-1284 Improper Validation of Specified Quantity in Input",
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"dateUpdated": "2026-11-11T13:50:14.473Z"
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"tags": [
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"url": "https://github.com/erlang/otp/security/advisories/GHSA-q7cq-pfgf-5hr7"
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},
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{
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"name": "EEF CNA record for CVE-2026-70405",
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"tags": [
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],
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"url": "https://cna.erlef.org/cves/CVE-2026-70405.html"
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},
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{
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"name": "OSV record EEF-CVE-2026-70405",
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"tags": [
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"related"
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],
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"url": "https://osv.dev/vulnerability/EEF-CVE-2026-70405"
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},
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{
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"name": "Erlang/OTP version ordering",
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"tags": [
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"x_version-scheme"
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],
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"url": "https://www.erlang.org/doc/system/versions.html#order-of-versions"
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},
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{
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"name": "Fix commit aba0fe8 in erlang/otp",
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"url": "https://github.com/erlang/otp/commit/aba0fe8c2d700bf4ac94607cf7f00e53bbe4042d"
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"name": "Fix commit e3be1cf in erlang/otp",
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"url": "https://github.com/erlang/otp/commit/e3be1cfe9f6cedd0cd20d9905e05601dfb31c8aa"
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}
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],
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"source": {
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"discovery": "EXTERNAL"
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},
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"title": "snmp BER INTEGER decoder applies no size limit to attacker-supplied integer fields"
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},
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"adp": [
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{
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"metrics": [
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-09-01T18:09:46.379754Z",
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||
"id": "CVE-2026-70405",
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"options": [
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{
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||
"Exploitation": "none"
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||
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"Automatable": "no"
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"Technical Impact": "partial"
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||
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||
],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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"title": "CISA ADP Vulnrichment",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-09-01T18:10:13.162Z"
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}
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]
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}
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} |