Medium
libstb — security advisory
stb_image is a single file MIT licensed library for processing images. The stbi__getn function reads a specified number of bytes from context (typically a file) into the specified buffer. In case the file stream points to the end, it returns zero. There are two places where its return value is not checked: In the `stbi__hdr_load` function and in the `stbi__tga_load` function. The latter of the two is likely more exploitable as an attacker may also control the size of an uninitialized buffer.
- Products
- libstb
- Affected versions
- 0.0~git20220908.8b5f1f3+ds-1, 0.0~git20230129.5736b15+ds-1, 0.0~git20230129.5736b15+ds-1.1, 0.0~git20230129.5736b15+ds-1.1~exp1, 0.0~git20230129.5736b15+ds-1.2, 0.0~git20240715.f7f20f39fe4f+ds-1, 0.0~git20241109.5c20573+ds-1, 0.0~git20250907.fede005+ds-1
- Fixed versions
- Not specified
- CVEs
- CVE-2023-45663
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 16:25 UTC · Revision 1
Source evidence
stb_image is a single file MIT licensed library for processing images. The stbi__getn function reads a specified number of bytes from context (typically a file) into the specified buffer. In case the file stream points to the end, it returns zero. There are two places where its return value is not checked: In the `stbi__hdr_load` function and in the `stbi__tga_load` function. The latter of the two is likely more exploitable as an attacker may also control the size of an uninitialized buffer.
osv:DEBIAN-CVE-2023-45663
libstb
Fixed versions: Not specified
libstb
Fixed versions: Not specified
libstb
Fixed versions: Not specified
Complete source record
{
"id": "1db9a6b174c11c651937aea61b60e53fc7116f29a2ef95c47c6159a9e4a5dbf8",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-45663",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2023-45663",
"summary": "stb_image is a single file MIT licensed library for processing images. The stbi__getn function reads a specified number of bytes from context (typically a file) into the specified buffer. In case the file stream points to the end, it returns zero. There are two places where its return value is not checked: In the `stbi__hdr_load` function and in the `stbi__tga_load` function. The latter of the two is likely more exploitable as an attacker may also control the size of an uninitialized buffer.",
"evidence": "osv:DEBIAN-CVE-2023-45663",
"products": [
{
"name": {
"value": "libstb",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.0~git20220908.8b5f1f3+ds-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.0~git20230129.5736b15+ds-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.0~git20230129.5736b15+ds-1.1",
"evidence": "/affected/0/versions"
},
{
"value": "0.0~git20230129.5736b15+ds-1.1~exp1",
"evidence": "/affected/0/versions"
},
{
"value": "0.0~git20230129.5736b15+ds-1.2",
"evidence": "/affected/0/versions"
},
{
"value": "0.0~git20240715.f7f20f39fe4f+ds-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.0~git20241109.5c20573+ds-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.0~git20250907.fede005+ds-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "libstb",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.0~git20241109.5c20573+ds-1",
"evidence": "/affected/1/versions"
},
{
"value": "0.0~git20250907.fede005+ds-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "libstb",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.0~git20241109.5c20573+ds-1",
"evidence": "/affected/2/versions"
},
{
"value": "0.0~git20250907.fede005+ds-1",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2023-45663",
"aliases": [
"DEBIAN-CVE-2023-45663"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libstb",
"purl": "pkg:deb/debian/libstb?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"0.0~git20220908.8b5f1f3+ds-1",
"0.0~git20230129.5736b15+ds-1",
"0.0~git20230129.5736b15+ds-1.1",
"0.0~git20230129.5736b15+ds-1.1~exp1",
"0.0~git20230129.5736b15+ds-1.2",
"0.0~git20240715.f7f20f39fe4f+ds-1",
"0.0~git20241109.5c20573+ds-1",
"0.0~git20250907.fede005+ds-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-45663.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libstb",
"purl": "pkg:deb/debian/libstb?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"0.0~git20241109.5c20573+ds-1",
"0.0~git20250907.fede005+ds-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-45663.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libstb",
"purl": "pkg:deb/debian/libstb?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"0.0~git20241109.5c20573+ds-1",
"0.0~git20250907.fede005+ds-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-45663.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T18:03:06.765330905Z",
"provider": "osv",
"upstream": [
"CVE-2023-45663"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2023-45663"
]
},
"related_cves": [
{
"value": "CVE-2023-45663",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 457674,
"published_at": "2023-10-21T00:15:08.93+00:00"
}