CVE-2020-27754
Ubuntu Security Notice USN-7068-1
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
-Decision
Descriptions
In IntensityCompare() of /magick/quantize.c, there are calls to PixelPacketIntensity() which could return overflowed values to the caller when ImageMagick processes a crafted input file. To mitigate this, the patch introduces and uses the ConstrainPixelIntensity() function, which forces the pixel intensities to be within the proper bounds in the event of an overflow. This flaw affects ImageMagick versions prior to 6.9.10-69 and 7.0.8-69.
En la función IntensityCompare() del archivo /magick/quantize.c, se presentan llamadas a PixelPacketIntensity() que podrían devolver valores desbordados a la persona que llama cuando ImageMagick procesa un archivo de entrada diseñado. Para mitigar esto, el parche introduce y utiliza la función ConstrainPixelIntensity(), que obliga a las intensidades de píxeles a estar dentro de los límites adecuados en caso de un desbordamiento. Este fallo afecta a ImageMagick versiones anteriores a 6.9.10-69 y 7.0.8-69
It was discovered that ImageMagick incorrectly handled certain malformed image files. If a user or automated system using ImageMagick were tricked into processing a specially crafted file, an attacker could exploit this to cause a denial of service or affect the reliability of the system. The vulnerabilities included memory leaks, buffer overflows, and improper handling of pixel data.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-10-27 CVE Reserved
- 2020-12-08 CVE Published
- 2024-08-04 CVE Updated
- 2024-08-04 First Exploit
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-190: Integer Overflow or Wraparound
CAPEC
References (3)
URL | Tag | Source |
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https://lists.debian.org/debian-lts-announce/2021/03/msg00030.html | Mailing List |
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https://lists.debian.org/debian-lts-announce/2023/03/msg00008.html | Mailing List |
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URL | Date | SRC |
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https://bugzilla.redhat.com/show_bug.cgi?id=1894231 | 2024-08-04 |
URL | Date | SRC |
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URL | Date | SRC |
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Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
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Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Imagemagick Search vendor "Imagemagick" | Imagemagick Search vendor "Imagemagick" for product "Imagemagick" | < 6.9.10-69 Search vendor "Imagemagick" for product "Imagemagick" and version " < 6.9.10-69" | - |
Affected
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Imagemagick Search vendor "Imagemagick" | Imagemagick Search vendor "Imagemagick" for product "Imagemagick" | >= 7.0.8 < 7.0.8-69 Search vendor "Imagemagick" for product "Imagemagick" and version " >= 7.0.8 < 7.0.8-69" | - |
Affected
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Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
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