HighFix available
libimager-perl — security advisory
Imager versions before 1.032 for Perl have a heap out-of-bounds read in the bundled Imager::File::SGI reader via a 16-bit RLE literal run in read_rgb_16_rle. read_rgb_16_rle guards each literal run with if (count > data_left), but count is a pixel count while every 16-bit sample consumes two bytes. The copy loop reads inp[0] * 256 + inp[1] and advances two bytes per pixel, so a run with data_left / 2 < count <= data_left passes the guard yet consumes 2 * count bytes and reads past the end of the buffer. The 8-bit path is unaffected because there one pixel is one byte. Reading a crafted SGI image through Imager->read triggers the over-read before the parser rejects the malformed image, which can crash the process.
- Products
- libimager-perl
- Affected versions
- 1.019+dfsg-1, 1.019+dfsg-2, 1.020+dfsg-1, 1.022+dfsg-1, 1.023+dfsg-1, 1.024+dfsg-1, 1.024+dfsg-2, 1.025+dfsg-1, 1.027+dfsg-1, 1.028+dfsg-1, 1.029+dfsg-1, 1.030+dfsg-1, 1.031+dfsg-1, 1.032+dfsg-1, 1.033+dfsg-1, 1.034+dfsg-1, 1.034+dfsg-2, 1.035+dfsg-1, 1.036+dfsg-1, 1.037+dfsg-1, 1.037+dfsg-2, 1.040+dfsg-1
- Fixed versions
- 1.032+dfsg-1
- CVEs
- CVE-2026-13705
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 13:56 UTC · Revision 2
Source evidence
Imager versions before 1.032 for Perl have a heap out-of-bounds read in the bundled Imager::File::SGI reader via a 16-bit RLE literal run in read_rgb_16_rle. read_rgb_16_rle guards each literal run with if (count > data_left), but count is a pixel count while every 16-bit sample consumes two bytes. The copy loop reads inp[0] * 256 + inp[1] and advances two bytes per pixel, so a run with data_left / 2 < count <= data_left passes the guard yet consumes 2 * count bytes and reads past the end of the buffer. The 8-bit path is unaffected because there one pixel is one byte. Reading a crafted SGI image through Imager->read triggers the over-read before the parser rejects the malformed image, which can crash the process.
osv:DEBIAN-CVE-2026-13705
libimager-perl
Fixed versions: Not specified
libimager-perl
Fixed versions: Not specified
libimager-perl
Fixed versions: 1.032+dfsg-1
Complete source record
{
"id": "638788cb114632b346185c9c98aa98e7c2b04230ec7b988d7be07e48bd5c69b7",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-13705",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-13705",
"summary": "Imager versions before 1.032 for Perl have a heap out-of-bounds read in the bundled Imager::File::SGI reader via a 16-bit RLE literal run in read_rgb_16_rle. read_rgb_16_rle guards each literal run with if (count > data_left), but count is a pixel count while every 16-bit sample consumes two bytes. The copy loop reads inp[0] * 256 + inp[1] and advances two bytes per pixel, so a run with data_left / 2 < count <= data_left passes the guard yet consumes 2 * count bytes and reads past the end of the buffer. The 8-bit path is unaffected because there one pixel is one byte. Reading a crafted SGI image through Imager->read triggers the over-read before the parser rejects the malformed image, which can crash the process.",
"evidence": "osv:DEBIAN-CVE-2026-13705",
"products": [
{
"name": {
"value": "libimager-perl",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.019+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.019+dfsg-2",
"evidence": "/affected/0/versions"
},
{
"value": "1.020+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.022+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.023+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.024+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.024+dfsg-2",
"evidence": "/affected/0/versions"
},
{
"value": "1.025+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.027+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.028+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.029+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.030+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.031+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.032+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.033+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.034+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.034+dfsg-2",
"evidence": "/affected/0/versions"
},
{
"value": "1.035+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.036+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.037+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.037+dfsg-2",
"evidence": "/affected/0/versions"
},
{
"value": "1.040+dfsg-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "libimager-perl",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.027+dfsg-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.028+dfsg-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.029+dfsg-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.030+dfsg-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.031+dfsg-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.032+dfsg-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.033+dfsg-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.034+dfsg-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.034+dfsg-2",
"evidence": "/affected/1/versions"
},
{
"value": "1.035+dfsg-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.036+dfsg-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.037+dfsg-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.037+dfsg-2",
"evidence": "/affected/1/versions"
},
{
"value": "1.040+dfsg-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "libimager-perl",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.032+dfsg-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": [
{
"value": "1.027+dfsg-1",
"evidence": "/affected/2/versions"
},
{
"value": "1.028+dfsg-1",
"evidence": "/affected/2/versions"
},
{
"value": "1.029+dfsg-1",
"evidence": "/affected/2/versions"
},
{
"value": "1.030+dfsg-1",
"evidence": "/affected/2/versions"
},
{
"value": "1.031+dfsg-1",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2026-13705",
"aliases": [
"DEBIAN-CVE-2026-13705"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libimager-perl",
"purl": "pkg:deb/debian/libimager-perl?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1.019+dfsg-1",
"1.019+dfsg-2",
"1.020+dfsg-1",
"1.022+dfsg-1",
"1.023+dfsg-1",
"1.024+dfsg-1",
"1.024+dfsg-2",
"1.025+dfsg-1",
"1.027+dfsg-1",
"1.028+dfsg-1",
"1.029+dfsg-1",
"1.030+dfsg-1",
"1.031+dfsg-1",
"1.032+dfsg-1",
"1.033+dfsg-1",
"1.034+dfsg-1",
"1.034+dfsg-2",
"1.035+dfsg-1",
"1.036+dfsg-1",
"1.037+dfsg-1",
"1.037+dfsg-2",
"1.040+dfsg-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-13705.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libimager-perl",
"purl": "pkg:deb/debian/libimager-perl?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1.027+dfsg-1",
"1.028+dfsg-1",
"1.029+dfsg-1",
"1.030+dfsg-1",
"1.031+dfsg-1",
"1.032+dfsg-1",
"1.033+dfsg-1",
"1.034+dfsg-1",
"1.034+dfsg-2",
"1.035+dfsg-1",
"1.036+dfsg-1",
"1.037+dfsg-1",
"1.037+dfsg-2",
"1.040+dfsg-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-13705.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.032+dfsg-1"
}
]
}
],
"package": {
"name": "libimager-perl",
"purl": "pkg:deb/debian/libimager-perl?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1.027+dfsg-1",
"1.028+dfsg-1",
"1.029+dfsg-1",
"1.030+dfsg-1",
"1.031+dfsg-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-13705.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T12:02:56.180955824Z",
"provider": "osv",
"upstream": [
"CVE-2026-13705"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-13705"
]
},
"related_cves": [
{
"value": "CVE-2026-13705",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 453005,
"published_at": "2026-07-06T13:16:32.447+00:00"
}