SB20260529240 - Debian update for imagemagick
Published: May 29, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 15 vulnerabilities.
1) Stack-based buffer overflow (CVE-ID: CVE-2026-42050)
CWE-ID: CWE-121 - Stack-based buffer overflow
CVSSv4: CVSS:4.0/AV:N/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 stack-based buffer overflow in XTileImage when processing a malicious MIFF file in the display tool after a tile is right-clicked to invoke the Load / Update menu item. A remote attacker can trick the victim into opening a crafted MIFF file to cause a denial of service.
User interaction is required to open the crafted file and invoke the menu item.
2) Out-of-bounds read (CVE-ID: CVE-2026-42326)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to disclose sensitive information and cause a denial of service.
The vulnerability exists due to out-of-bounds read in the IPTC encoder when writing an IPTC output file. A remote attacker can supply a malicious input file to disclose sensitive information and cause a denial of service.
The out-of-bounds read is limited to a single byte.
3) Allocation of Resources Without Limits or Throttling (CVE-ID: CVE-2026-45031)
CWE-ID: CWE-770 - Allocation of Resources Without Limits or Throttling
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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 allocation of resources without limits or throttling in the PSD decoder when decoding a PSD image. A remote attacker can supply a specially crafted PSD image to cause a denial of service.
Other security limits still apply.
4) Out-of-bounds read (CVE-ID: CVE-2026-45359)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to disclose sensitive information and cause a denial of service.
The vulnerability exists due to out-of-bounds read in the connected components operation when processing an invalid connected-components:keep-top define value. A remote attacker can supply a crafted connected-components:keep-top value to disclose sensitive information and cause a denial of service.
5) Out-of-bounds read (CVE-ID: CVE-2026-45624)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to disclose sensitive information and cause a denial of service.
The vulnerability exists due to out-of-bounds read in the distort operation when performing a polynomial distortion with specific arguments. A remote attacker can supply specific arguments to disclose sensitive information and cause a denial of service.
6) Resource exhaustion (CVE-ID: CVE-2026-45664)
CWE-ID: CWE-400 - Resource exhaustion
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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 resource consumption in the MNG decoder when processing crafted MNG images. A remote attacker can supply input that causes the decoder to read more images than the list limit policy allows to cause a denial of service.
7) Out-of-bounds write (CVE-ID: CVE-2026-46520)
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 compromise vulnerable system.
The vulnerability exists due to a boundary error in IPL decoder when reading multiple images of different dimensions. A remote attacker can trigger an out-of-bounds write and perform a denial of service (DoS) attack on the system.
8) Out-of-bounds write (CVE-ID: CVE-2026-46521)
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 compromise vulnerable system.
The vulnerability exists due to a boundary error in MIFF encoder when using LZMA compression. A remote attacker can trigger an out-of-bounds write and perform a denial of service (DoS) attack on the system.
9) Infinite loop (CVE-ID: CVE-2026-46522)
CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
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 perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop in the MIFF decoder. A remote attacker can consume all available system resources and cause denial of service conditions.
10) Use-after-free (CVE-ID: CVE-2026-46523)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in MSL decoder. A local attacker can perform a denial of service (DoS) attack.
11) Out-of-bounds write (CVE-ID: CVE-2026-46559)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input in the JP2 encoder. A local attacker can trigger an out-of-bounds write and perform a denial of service (DoS) attack on the target system.
12) Heap-based buffer overflow (CVE-ID: CVE-2026-46692)
CWE-ID: CWE-122 - Heap-based Buffer Overflow
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local privileged user to cause a denial of service.
The vulnerability exists due to heap-based buffer overflow in the distributed pixel cache server when handling connections to the magick -distribute-cache service. A local privileged user can connect to the service to cause a denial of service.
13) Race condition (CVE-ID: CVE-2026-46693)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local privileged user to disclose sensitive information.
The vulnerability exists due to a race condition in the distributed pixel cache server when handling connections to the magick -distribute-cache service. A local privileged user can win the race condition to hijack a file descriptor in the server process to disclose sensitive information.
14) Missing Authentication for Critical Function (CVE-ID: CVE-2026-47165)
CWE-ID: CWE-306 - Missing Authentication for Critical Function
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local privileged user to disclose sensitive information.
The vulnerability exists due to improper authentication in distributed pixel cache server when handling distributed pixel cache connections. A local privileged user can access the service without a challenge-response authentication model to disclose sensitive information.
15) Out-of-bounds read (CVE-ID: CVE-2026-47166)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local privileged user to disclose sensitive information and cause a denial of service.
The vulnerability exists due to out-of-bounds read in the distributed pixel cache server when handling connections to the magick -distribute-cache service. A local privileged user can connect to the service to disclose sensitive information and cause a denial of service.
Remediation
Install update from vendor's website.