CVE-2020-27792

A heap-based buffer overwrite vulnerability was found in GhostScript's lp8000_print_page() function in the gdevlp8k.c file. This flaw allows an attacker to trick a user into opening a crafted PDF file, triggering the heap buffer overflow that could lead to memory corruption or a denial of service.

The Ghostscript suite contains utilities for rendering PostScript and PDF documents. Ghostscript translates PostScript code to common bitmap formats so that the code can be displayed or printed.

Security Fix(es):

• ghostscript: heap buffer over write vulnerability in GhostScript's lp8000_print_page() in gdevlp8k.c (CVE-2020-27792)

• ghostscript: dangling pointer in gdev_prn_open_printer_seekable() (CVE-2023-46751)

• ghostscript: Buffer Overflow in Ghostscript PDF XRef Stream Handling (CVE-2024-46952)

• ghostscript: Arbitrary Code Execution in Artifex Ghostscript Pattern Color Space (CVE-2024-46951)

• ghostscript: Directory Traversal in Ghostscript via Overlong UTF-8 Encoding (CVE-2024-46954)

• ghostscript: Path Traversal and Code Execution via Integer Overflow in Ghostscript (CVE-2024-46953)

• ghostscript: Out-of-Bounds Data Access in Ghostscript Leads to Arbitrary Code Execution (CVE-2024-46956)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

A heap-based buffer overwrite vulnerability was found in GhostScript's lp8000_print_page() function in the gdevlp8k.c file. This flaw allows an attacker to trick a user into opening a crafted PDF file, triggering the heap buffer overflow that could lead to memory corruption or a denial of service.

The Ghostscript suite contains utilities for rendering PostScript and PDF documents. Ghostscript translates PostScript code to common bitmap formats so that the code can be displayed or printed.

Security Fix(es):

• ghostscript: heap buffer over write vulnerability in GhostScript's lp8000_print_page() in gdevlp8k.c (CVE-2020-27792)
• ghostscript: dangling pointer in gdev_prn_open_printer_seekable() (CVE-2023-46751)
• ghostscript: Buffer Overflow in Ghostscript PDF XRef Stream Handling (CVE-2024-46952)
• ghostscript: Arbitrary Code Execution in Artifex Ghostscript Pattern Color Space (CVE-2024-46951)
• ghostscript: Directory Traversal in Ghostscript via Overlong UTF-8 Encoding (CVE-2024-46954)
• ghostscript: Path Traversal and Code Execution via Integer Overflow in Ghostscript (CVE-2024-46953)
• ghostscript: Out-of-Bounds Data Access in Ghostscript Leads to Arbitrary Code Execution (CVE-2024-46956)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

It was discovered the Ghostscript incorrectly handled memory when processing certain inputs. By tricking a user into opening a specially crafted PDF file, an attacker could cause the program to crash.

It was discovered that GhostScript incorrectly handled certain PDF files. If a user or automated system were tricked into opening a specially crafted PDF file, a remote attacker could use this issue to cause GhostScript to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-27792)

It was discovered that GhostScript incorrectly handled certain PDF files. If a user or automated system were tricked into opening a specially crafted PDF file, a remote attacker could use this issue to cause GhostScript to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 22.04 LTS. (CVE-2022-2085)