Bug 2235458 (CVE-2020-18768) - CVE-2020-18768 libtiff: heap-based buffer overflow in _TIFFmemcpy() in tif_unix.c
Summary: CVE-2020-18768 libtiff: heap-based buffer overflow in _TIFFmemcpy() in tif_un...
Keywords:
Status: NEW
Alias: CVE-2020-18768
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2235763 2235764 2235765 2235767
Blocks: 2235459
TreeView+ depends on / blocked
 
Reported: 2023-08-28 17:45 UTC by Guilherme de Almeida Suckevicz
Modified: 2023-10-30 13:11 UTC (History)
10 users (show)

Fixed In Version: libtiff 4.1.0
Doc Type: If docs needed, set a value
Doc Text:
A heap-based buffer overflow exists in libtiff in TIFFmemcpy. This flaw allows an attacker to craft a specific TIFF file, possibly causing a denial of service that results in a loss of the system’s availability.
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Description Guilherme de Almeida Suckevicz 2023-08-28 17:45:22 UTC 
There exists one heap buffer overflow in _TIFFmemcpy in tif_unix.c in libtiff 4.0.10, which allows an attacker to cause a denial-of-service through a crafted tiff file.

Reference:
http://bugzilla.maptools.org/show_bug.cgi?id=2848
Comment 2 Guilherme de Almeida Suckevicz 2023-08-29 16:49:48 UTC 
Created iv tracking bugs for this issue:

Affects: fedora-all [bug 2235767]
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