Heap-based buffer overflow in LibTIFF - CVE-2020-18768
Published: November 6, 2023
Vulnerability identifier: #VU82762
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-18768
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error within the _TIFFmemcpy() function in tif_unix.c. A remote attacker can pass specially crafted image to the application, trigger a heap-based buffer overflow and perform a denial of service (DoS) attack.
Affected software
LibTIFF
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Manager Proxy
SUSE Manager Retail Branch Server
SUSE Manager Server
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
openSUSE Leap Micro
Basesystem Module
SUSE Package Hub 15
openSUSE Leap
tiff-debuginfo
tiff-debugsource
tiff
libtiff5-debuginfo
libtiff5
libtiff5-debuginfo-32bit
libtiff5-32bit
libtiff-devel
libtiff-devel-32bit
libtiff5-32bit-debuginfo
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Manager Proxy
SUSE Manager Retail Branch Server
SUSE Manager Server
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
openSUSE Leap Micro
Basesystem Module
SUSE Package Hub 15
openSUSE Leap
tiff-debuginfo
tiff-debugsource
tiff
libtiff5-debuginfo
libtiff5
libtiff5-debuginfo-32bit
libtiff5-32bit
libtiff-devel
libtiff-devel-32bit
libtiff5-32bit-debuginfo
How to mitigate CVE-2020-18768
Install updates from vendor's website.
tiff-debuginfo - addressed in versions 4.0.9-44.71.1, 4.0.9-150000.45.32.1
tiff-debugsource - addressed in versions 4.0.9-44.71.1, 4.0.9-150000.45.32.1
tiff - addressed in versions 4.0.9-44.71.1, 4.0.9-150000.45.32.1
libtiff5-debuginfo - addressed in versions 4.0.9-44.71.1, 4.0.9-150000.45.32.1
libtiff5 - addressed in versions 4.0.9-44.71.1, 4.0.9-150000.45.32.1
libtiff5-debuginfo-32bit - update to 4.0.9-44.71.1
libtiff5-32bit - addressed in versions 4.0.9-44.71.1, 4.0.9-150000.45.32.1
libtiff-devel - addressed in versions 4.0.9-44.71.1, 4.0.9-150000.45.32.1
libtiff-devel-32bit - update to 4.0.9-150000.45.32.1
libtiff5-32bit-debuginfo - update to 4.0.9-150000.45.32.1
tiff-debugsource - addressed in versions 4.0.9-44.71.1, 4.0.9-150000.45.32.1
tiff - addressed in versions 4.0.9-44.71.1, 4.0.9-150000.45.32.1
libtiff5-debuginfo - addressed in versions 4.0.9-44.71.1, 4.0.9-150000.45.32.1
libtiff5 - addressed in versions 4.0.9-44.71.1, 4.0.9-150000.45.32.1
libtiff5-debuginfo-32bit - update to 4.0.9-44.71.1
libtiff5-32bit - addressed in versions 4.0.9-44.71.1, 4.0.9-150000.45.32.1
libtiff-devel - addressed in versions 4.0.9-44.71.1, 4.0.9-150000.45.32.1
libtiff-devel-32bit - update to 4.0.9-150000.45.32.1
libtiff5-32bit-debuginfo - update to 4.0.9-150000.45.32.1