[<prev] [next>] [day] [month] [year] [list]
Message-Id: <5BC1F2D4-B95C-46C1-BFAE-875A41F43870@stig.io>
Date: Mon, 6 Jul 2026 14:05:35 +0200
From: Stig Palmquist <stig@...g.io>
To: cve-announce@...urity.metacpan.org,
oss-security@...ts.openwall.com
Subject: 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
========================================================================
CVE-2026-13705 CPAN Security Group
========================================================================
CVE ID: CVE-2026-13705
Distribution: Imager
Versions: before 1.032
MetaCPAN: https://metacpan.org/dist/Imager
VCS Repo: https://github.com/tonycoz/imager
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
Description
-----------
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.
Problem types
-------------
- CWE-125 Out-of-bounds Read
Solutions
---------
Upgrade to Imager 1.032 or later.
References
----------
https://github.com/tonycoz/imager/commit/f28de02770dfc26ffbdc32048970ed84babbf730.patch
https://metacpan.org/release/TONYC/Imager-1.032/source/Changes
Timeline
--------
- 2026-07-01: Version 1.032 released with fix.
Powered by blists - more mailing lists
Please check out the
Open Source Software Security Wiki, which is counterpart to this
mailing list.
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
