CVE-2020-27771
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
-Decision
Descriptions
In RestoreMSCWarning() of /coders/pdf.c there are several areas where calls to GetPixelIndex() could result in values outside the range of representable for the unsigned char type. The patch casts the return value of GetPixelIndex() to ssize_t type to avoid this bug. This undefined behavior could be triggered when ImageMagick processes a crafted pdf file. Red Hat Product Security marked this as Low severity because although it could potentially lead to an impact to application availability, no specific impact was demonstrated in this case. This flaw affects ImageMagick versions prior to 7.0.9-0.
En la función RestoreMSCWarning() del archivo /coders/pdf.c existen varias áreas donde las llamadas a la función GetPixelIndex() podrían resultar en valores fuera de rango de representable para el tipo char sin firmar. El parche convierte el valor de retorno de la función GetPixelIndex() al tipo ssize_t para evitar este error. Este comportamiento indefinido podría ser activado cuando ImageMagick procesa un archivo PDF diseñado. Red Hat Product Security marcó esto como de gravedad Baja porque, aunque podría tener un impacto potencial en la disponibilidad de la aplicación, en este caso no se demostró un impacto específico. Este fallo afecta a ImageMagick versiones anteriores a 7.0.9-0
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-10-27 CVE Reserved
- 2020-12-04 CVE Published
- 2023-08-20 EPSS Updated
- 2024-08-04 CVE Updated
- 2024-08-04 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-190: Integer Overflow or Wraparound
CAPEC
References (3)
| URL | Tag | Source |
|---|---|---|
| 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 |
|
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1898290 | 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 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" | >= 7.0.0-0 < 7.0.9 Search vendor "Imagemagick" for product "Imagemagick" and version " >= 7.0.0-0 < 7.0.9" | - |
Affected
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| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 5.0 Search vendor "Redhat" for product "Enterprise Linux" and version "5.0" | - |
Affected
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| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 6.0 Search vendor "Redhat" for product "Enterprise Linux" and version "6.0" | - |
Affected
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| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0" | - |
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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