SB2018053026 - Fedora 28 update for libtiff

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Main Vulnerability Database SB2018053026

SB2018053026 - Fedora 28 update for libtiff

Published: May 30, 2018 Updated: April 24, 2025

Security Bulletin ID SB2018053026
Severity
High
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 secuirty vulnerabilities.


1) Memory corruption (CVE-ID: CVE-2017-9935)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists in the t2p_write_pdf function in tools/tiff2pdf.c due to heap-based buffer overflow. A remote attacker can submit a specially crafted TIFF document, trigger out-of-bounds read in TIFFCleanup, an invalid free in TIFFClose or t2p_free, memory corruption in t2p_readwrite_pdf_image, or a double free in t2p_free and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may result in system compromise.

2) NULL pointer dereference (CVE-ID: CVE-2017-18013)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference error in tif_print.c within TIFFPrintDirectory() function. A remote attacker can trigger a NULL pointer dereference error and crash the affected application.


3) Heap-based buffer overflow (CVE-ID: CVE-2018-8905)

The vulnerability allows a remote authenticated attacker to cause DoS condition or execute arbitrary code on the target system.

The weakness exists in the LZWDecodeCompat function due to insufficient validation of user-supplied input. A remote attacker can submit a specially crafted TIFF file, cause the service to crash or execute arbitrary code.

Successful exploitation of the vulnerability may result in system compromise.

4) Input validation error (CVE-ID: CVE-2018-10963)

The vulnerability allows a remote attacker to cause denial of service conditions.

The vulnerability exists due to insufficient validation of user-supplied input processed by the TIFFWriteDirectorySec() function, as defined in the tif_dirwrite.c source code file. A remote attacker can trick the victim into opening a specially crafted file, trigger assertion failure and cause the application to crash.


Remediation

Install update from vendor's website.

References