Medium
Security advisory
The PPM reader in libjpeg-turbo through 2.0.90 mishandles use of tjLoadImage for loading a 16-bit binary PPM file into a grayscale buffer and loading a 16-bit binary PGM file into an RGB buffer. This is related to a heap-based buffer overflow in the get_word_rgb_row function in rdppm.c.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-46822
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 13:02 UTC · Revision 1
Source evidence
The PPM reader in libjpeg-turbo through 2.0.90 mishandles use of tjLoadImage for loading a 16-bit binary PPM file into a grayscale buffer and loading a 16-bit binary PGM file into an RGB buffer. This is related to a heap-based buffer overflow in the get_word_rgb_row function in rdppm.c.
osv:CVE-2021-46822
Complete source record
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"id": "636dfbd148c79c20a6d28b3cbfdab3f06ebfb8e5eade4561123e65f2bdf174ab",
"url": "https://osv.dev/vulnerability/CVE-2021-46822",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-46822",
"summary": "The PPM reader in libjpeg-turbo through 2.0.90 mishandles use of tjLoadImage for loading a 16-bit binary PPM file into a grayscale buffer and loading a 16-bit binary PGM file into an RGB buffer. This is related to a heap-based buffer overflow in the get_word_rgb_row function in rdppm.c.",
"evidence": "osv:CVE-2021-46822",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2021-46822",
"aliases": [
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],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/libjpeg-turbo/libjpeg-turbo",
"type": "GIT",
"events": [
{
"introduced": "0"
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{
"last_affected": "4e52b66f342a803d3b8099b79607e3158d3a241c"
},
{
"fixed": "f35fd27ec641c42d6b115bfa595e483ec58188d2"
}
],
"database_specific": {
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"cpe": "cpe:2.3:a:libjpeg-turbo:libjpeg-turbo:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "2.0.90"
}
],
"source": "CPE_RANGE"
},
{
"range": [
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"source": "REFERENCES_COMMIT"
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"1.0.1",
"1.0.90",
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"0.0.93",
"0.0.91",
"0.0.90"
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"database_specific": {
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"source": "https://github.com/libjpeg-turbo/libjpeg-turbo/commit/f35fd27ec641c42d6b115bfa595e483ec58188d2",
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"vanir_signatures_modified": "2026-10-20T14:31:44Z"
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],
"modified": "2026-10-20T14:31:44.365305512Z",
"provider": "osv",
"references": [
"https://exchange.xforce.ibmcloud.com/vulnerabilities/221567",
"https://github.com/libjpeg-turbo/libjpeg-turbo/commit/f35fd27ec641c42d6b115bfa595e483ec58188d2"
],
"provider_metadata": {}
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"related_cves": [
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"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 389704,
"published_at": "2022-06-18T16:15:08.11+00:00"
}