150 lines
6.1 KiB
JSON
150 lines
6.1 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-2026-53503",
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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": "2026-06-09T17:05:25.059Z",
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"datePublished": "2026-07-31T18:54:20.747Z",
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"dateUpdated": "2026-07-31T21:39:35.108Z"
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},
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"containers": {
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"cna": {
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"title": "Thumbor convolution filter allows divide-by-zero in C extension leading to remote DoS",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-20",
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"lang": "en",
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"description": "CWE-20: Improper Input Validation",
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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-369",
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"lang": "en",
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"description": "CWE-369: Divide By Zero",
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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": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 7.5,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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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:L/PR:N/UI:N/S:U/C:N/I:N/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/thumbor/thumbor/security/advisories/GHSA-cqjp-jf4r-h5q9",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/thumbor/thumbor/security/advisories/GHSA-cqjp-jf4r-h5q9"
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},
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{
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"name": "https://github.com/thumbor/thumbor/commit/447e192e3fb92e64c12e5354a56a4a7133f69d73",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/thumbor/thumbor/commit/447e192e3fb92e64c12e5354a56a4a7133f69d73"
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},
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{
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"name": "https://github.com/thumbor/thumbor/releases/tag/7.8.0",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/thumbor/thumbor/releases/tag/7.8.0"
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}
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],
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"affected": [
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{
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"vendor": "thumbor",
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"product": "thumbor",
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"versions": [
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{
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"version": "< 7.8.0",
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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": "2026-07-31T18:54:20.747Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, Thumbor's filters:convolution(<matrix>, <columns>, <should_normalize>) filter passes the user-controlled <columns> value to a C extension (thumbor/ext/filters/_convolution.c) where it is used as a divisor (for % and /) without validating columns > 0. When columns=0, the C code triggers undefined behavior; on x86_64 this reliably results in a fatal divide-by-zero trap (SIGFPE) and crashes the Thumbor process, causing a remote denial of service. This issue is fixed in 7.8.0."
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}
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],
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"source": {
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"advisory": "GHSA-cqjp-jf4r-h5q9",
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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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"references": [
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{
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"url": "https://github.com/thumbor/thumbor/security/advisories/GHSA-cqjp-jf4r-h5q9",
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"tags": [
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"exploit"
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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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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-07-31T20:14:06.472673Z",
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"id": "CVE-2026-53503",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "yes"
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},
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{
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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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],
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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": "2026-07-31T21:39:35.108Z"
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}
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}
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]
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}
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} |