216 lines
8.7 KiB
JSON
216 lines
8.7 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-2026-73639",
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"assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
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"state": "PUBLISHED",
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"assignerShortName": "CPANSec",
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"dateReserved": "2026-08-13T12:51:42.912Z",
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"datePublished": "2026-09-17T21:18:59.207Z",
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"dateUpdated": "2026-09-22T18:27:56.365Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"collectionURL": "https://cpan.org/modules",
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"defaultStatus": "unaffected",
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"modules": [
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"Imager::File::PNG"
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],
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"packageName": "Imager-File-PNG",
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"packageURL": "pkg:cpan/Imager-File-PNG",
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"programFiles": [
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"impng.c"
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],
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"programRoutines": [
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{
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"name": "read_direct8"
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}
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],
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"repo": "https://github.com/tonycoz/imager",
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"versions": [
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{
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"lessThan": "1.004",
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"status": "affected",
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"version": "1.003",
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"versionType": "custom"
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}
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]
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},
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{
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"collectionURL": "https://cpan.org/modules",
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"defaultStatus": "unaffected",
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"modules": [
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"Imager::File::PNG"
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],
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"packageName": "Imager",
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"packageURL": "pkg:cpan/Imager",
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"programFiles": [
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"PNG/impng.c"
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],
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"programRoutines": [
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{
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"name": "read_direct8"
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}
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],
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"repo": "https://github.com/tonycoz/imager",
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"versions": [
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{
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"lessThan": "1.035",
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"status": "affected",
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"version": "1.034",
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"versionType": "custom"
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}
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]
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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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"type": "finder",
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"value": "Alexander Bluhm (bluhm)"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "Imager::File::PNG versions from 1.003 before 1.004 for Perl write past the end of the row buffer reading a PNG with a tRNS transparency chunk in read_direct8.\n\nWith a tRNS chunk, read_direct8() adds an alpha channel to the image it creates but still sizes the row buffer from the original channel count. libpng expands the transparency into that extra channel, so png_read_row() fills one channel more than the buffer holds, at one byte per sample, and writes width bytes past the end of the allocation. Palette images go to read_paletted() and 16-bit images to read_direct16(), which sizes its buffer from png_get_rowbytes() and allocates enough for the expanded row.\n\nThe same reader ships bundled in the Imager distribution.\n\nReading an attacker-supplied PNG through Imager->read() corrupts the heap, which can crash the process."
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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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"cweId": "CWE-787",
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"description": "CWE-787 Out-of-bounds Write",
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"lang": "en",
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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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"providerMetadata": {
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"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
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"shortName": "CPANSec",
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"dateUpdated": "2026-09-17T21:18:59.207Z"
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},
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"references": [
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{
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"tags": [
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"vendor-advisory"
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],
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"url": "https://github.com/tonycoz/imager/security/advisories/GHSA-jhx5-34j8-9g88"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/tonycoz/imager/commit/d973bd7e8843f084e8071caa24b89545c88b1e4b.patch"
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},
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{
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"tags": [
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"issue-tracking"
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],
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"url": "https://github.com/tonycoz/imager/pull/567"
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},
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{
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"tags": [
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"release-notes"
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],
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"url": "https://metacpan.org/release/TONYC/Imager-File-PNG-1.004/changes"
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},
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{
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"tags": [
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"release-notes"
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],
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"url": "https://metacpan.org/release/TONYC/Imager-1.035/changes"
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}
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],
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"solutions": [
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{
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"lang": "en",
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"value": "Upgrade to Imager-File-PNG 1.004 or later, or to Imager 1.035 or later if the bundled copy is in use."
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}
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],
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"source": {
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"discovery": "UNKNOWN"
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},
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"timeline": [
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{
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"lang": "en",
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"time": "2026-08-19T00:00:00.000Z",
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"value": "Imager-File-PNG 1.004 and Imager 1.035 released with fix."
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}
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],
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"title": "Imager::File::PNG versions from 1.003 before 1.004 for Perl write past the end of the row buffer reading a PNG with a tRNS transparency chunk in read_direct8",
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"x_generator": {
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"engine": "cpansec-cna-tool 0.1"
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}
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},
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"adp": [
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{
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"title": "CVE Program Container",
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"references": [
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{
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"url": "http://www.openwall.com/lists/oss-security/2026/09/17/6"
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}
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],
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2026-09-18T00:18:32.862Z"
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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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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 9.1,
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"attackVector": "NETWORK",
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"baseSeverity": "CRITICAL",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
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"integrityImpact": "NONE",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "NONE",
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"confidentialityImpact": "HIGH"
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}
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},
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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": "2026-09-22T18:04:27.077498Z",
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"id": "CVE-2026-73639",
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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": "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": "2026-09-22T18:27:56.365Z"
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}
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}
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]
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}
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} |