152 lines
6.3 KiB
JSON
152 lines
6.3 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-2026-76077",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-08-18T21:17:32.199Z",
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"datePublished": "2026-11-05T16:49:58.765Z",
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"dateUpdated": "2026-11-09T16:50:34.415Z"
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},
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"containers": {
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"cna": {
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"title": "ASN1SCC: Stack buffer overflow and out-of-bounds read in XER tokenizer NT()",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-120",
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"lang": "en",
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"description": "CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')",
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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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"descriptions": [
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{
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"cweId": "CWE-125",
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"lang": "en",
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"description": "CWE-125: Out-of-bounds Read",
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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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"descriptions": [
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{
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"cweId": "CWE-787",
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"lang": "en",
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"description": "CWE-787: Out-of-bounds Write",
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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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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "HIGH",
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"attackVector": "NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 8.1,
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"baseSeverity": "HIGH",
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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:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"version": "3.1"
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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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"name": "https://github.com/esa/asn1scc/security/advisories/GHSA-38q3-fg5h-wwf9",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/esa/asn1scc/security/advisories/GHSA-38q3-fg5h-wwf9"
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},
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{
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"name": "https://github.com/esa/asn1scc/commit/fe6ab763bc60d8a2def4104c15414809b45fffd9",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/esa/asn1scc/commit/fe6ab763bc60d8a2def4104c15414809b45fffd9"
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},
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{
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"name": "https://github.com/esa/asn1scc/releases/tag/4.7.0.1",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/esa/asn1scc/releases/tag/4.7.0.1"
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}
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],
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"affected": [
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{
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"vendor": "esa",
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"product": "asn1scc",
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"versions": [
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{
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"version": "< 4.7.0.1",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-11-05T16:49:58.765Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "ASN1SCC is an open source ASN.1 compiler for embedded systems. Prior to 4.7.0.1, the XER tokenizer NT() in asn1crt/asn1crt_encoding_xer.c, which is reached by all XER decode paths, copies tag characters into a fixed char Value[100] field without a length bound and reads input and lookahead bytes without checking the buffer count. A crafted XER message with an overlong tag can overwrite the tokenizer's stack frame, while a truncated tag or unterminated processing-instruction or comment sequence can read beyond the input and may cause a CPU spin. The flaws can disclose adjacent memory, corrupt stack data, crash or hang the decoder, and potentially permit code execution. This issue is fixed in version 4.7.0.1."
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}
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],
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"source": {
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"advisory": "GHSA-38q3-fg5h-wwf9",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-11-09T16:12:28.472137Z",
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"id": "CVE-2026-76077",
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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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"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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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-11-09T16:50:34.415Z"
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}
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}
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]
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}
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} |