CVE-2018-10963

libtiff: reachable assertion in TIFFWriteDirectorySec function in tif_dirwrite.c

Severity Score

6.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The TIFFWriteDirectorySec() function in tif_dirwrite.c in LibTIFF through 4.0.9 allows remote attackers to cause a denial of service (assertion failure and application crash) via a crafted file, a different vulnerability than CVE-2017-13726.

La función TIFFWriteDirectorySec() en tif_dirwrite.c en LibTIFF hasta la versión 4.0.9 permite que atacantes remotos provoquen una denegación de servicio (fallo de aserción y cierre inesperado de la aplicación) mediante un archivo manipulado.

It was discovered that LibTIFF incorrectly handled certain malformed images. If a user or automated system were tricked into opening a specially crafted image, a remote attacker could crash the application, leading to a denial of service, or possibly execute arbitrary code with user privileges.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-05-09 CVE Reserved
2018-05-10 CVE Published
2024-08-05 CVE Updated
2024-08-05 First Exploit
2025-04-26 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-617: Reachable Assertion

CAPEC

References (7)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2018/07/msg00002.html	Mailing List

URL	Date	SRC
http://bugzilla.maptools.org/show_bug.cgi?id=2795	2024-08-05

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2019:2053	2019-10-03
https://usn.ubuntu.com/3864-1	2019-10-03
https://www.debian.org/security/2018/dsa-4349	2019-10-03
https://access.redhat.com/security/cve/CVE-2018-10963	2019-08-06
https://bugzilla.redhat.com/show_bug.cgi?id=1579058	2019-08-06

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Libtiff Search vendor "Libtiff"		Libtiff Search vendor "Libtiff" for product "Libtiff"				<= 4.0.9 Search vendor "Libtiff" for product "Libtiff" and version " <= 4.0.9"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
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
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.10"		-		Affected