SB2026062101 - Debian update for imagemagick
Published: June 21, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 9 vulnerabilities.
1) Out-of-bounds write (CVE-ID: CVE-2026-48724)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to out-of-bounds write in the Floyd-Steinberg depth dithering functionality when processing a crafted image with a mask. A remote attacker can trick the victim into opening a crafted image to cause a denial of service.
User interaction is required to open or process a crafted image.
2) Uncontrolled Recursion (CVE-ID: CVE-2026-48734)
CWE-ID: CWE-674 - Uncontrolled Recursion
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to uncontrolled recursion in the MVG decoder when parsing a crafted MVG file. A remote attacker can trick the victim into opening a crafted file to cause a denial of service.
User interaction is required to open a crafted file.
3) Heap-based buffer overflow (CVE-ID: CVE-2026-48994)
CWE-ID: CWE-122 - Heap-based Buffer Overflow
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in MAT decoder on 32-bit systems. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and cause a denial of service condition on the target system.
4) Input validation error (CVE-ID: CVE-2026-49218)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper input validation in the DCM decoder when parsing crafted DCM images. A remote attacker can supply a specially crafted DCM image to cause a denial of service.
The issue can produce an image with invalid dimensions, which may lead to crashes in subsequent operations.
5) Path traversal (CVE-ID: CVE-2026-49219)
CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to disclose sensitive information.
The vulnerability exists due to path traversal in filename parsing when processing a filename that uses a symlink. A local user can supply a crafted filename to disclose sensitive information.
The issue can bypass configured security policy restrictions on file access.
6) Input validation error (CVE-ID: CVE-2026-53460)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper input validation in AcquireAlignedMemory when processing memory allocation requests. A remote attacker can trigger excessive memory allocation to cause a denial of service.
7) Out-of-bounds write (CVE-ID: CVE-2026-53461)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to out-of-bounds write in the ICON decoder when parsing a crafted ICON image. A remote attacker can supply a specially crafted ICON image to cause a denial of service.
8) NULL pointer dereference (CVE-ID: CVE-2026-53463)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to null pointer dereference in distort operation when processing incorrect arguments. A remote attacker can pass incorrect arguments to cause a denial of service.
User interaction is required to process the crafted input.
9) Memory leak (CVE-ID: CVE-2026-53464)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to missing release of memory after effective lifetime in wand option parser when processing invalid arguments. A remote attacker can provide invalid options to cause a denial of service.
Remediation
Install update from vendor's website.