CVE-2026-13705

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.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/tonycoz/imager/commit/f28de02770dfc26ffbdc32048970ed84babbf730.patch
https://metacpan.org/release/TONYC/Imager-1.032/source/Changes
http://www.openwall.com/lists/oss-security/2026/07/06/3

Configurations

No configuration.

History

No history.

Information

Published : 2026-07-06 13:16

Updated : 2026-07-06 20:16

NVD link : CVE-2026-13705

Mitre link : CVE-2026-13705

CVE.ORG link : CVE-2026-13705

JSON object : View

Products Affected

No product.

CWE

CWE-125

Out-of-bounds Read

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