CVE-2023-2731 : A NULL pointer dereference flaw was found in Libtiff's LZWDecode() function in t

A NULL pointer dereference flaw was found in Libtiff's LZWDecode() function in the libtiff/tif_lzw.c file. This flaw allows a local attacker to craft specific input data that can cause the program to dereference a NULL pointer when decompressing a TIFF format file, resulting in a program crash or denial of service.

Published 2023-05-17 22:15:11

Updated 2023-07-03 16:15:10

Source Red Hat, Inc.

View at NVD, CVE.org

Vulnerability category: Memory CorruptionDenial of service

Products affected by CVE-2023-2731

Redhat » Enterprise Linux » Version: 9.0
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
Matching versions
Libtiff » Libtiff
Versions before (<) 4.5.0
cpe:2.3:a:libtiff:libtiff:*:*:*:*:*:*:*:*
Matching versions
Fedoraproject » Fedora » Version: 38
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2023-2731

EPSS FAQ

0.09%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 39 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-2731

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
5.5	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	1.8	3.6	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2023-2731

CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.
Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)

References for CVE-2023-2731

https://bugzilla.redhat.com/show_bug.cgi?id=2207635

2207635 – (CVE-2023-2731) CVE-2023-2731 libtiff: null pointer deference in LZWDecode() in libtiff/tif_lzw.c
Issue Tracking;Patch;Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-2731

cve-details
Third Party Advisory
https://gitlab.com/libtiff/libtiff/-/issues/548

Null Pointer Dereference in tif_lzw.c. (#548) · Issues · libtiff / libtiff · GitLab
Exploit;Issue Tracking;Patch;Third Party Advisory
https://security.netapp.com/advisory/ntap-20230703-0009/

CVE-2023-2731 Libtiff Vulnerability in NetApp Products | NetApp Product Security
https://github.com/libsdl-org/libtiff/commit/9be22b639ea69e102d3847dca4c53ef025e9527b

LZWDecode(): avoid crash when trying to read again from a strip whith… · libsdl-org/libtiff@9be22b6 · GitHub
Patch

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Vulnerability Details : CVE-2023-2731

Products affected by CVE-2023-2731

Exploit prediction scoring system (EPSS) score for CVE-2023-2731

CVSS scores for CVE-2023-2731

CWE ids for CVE-2023-2731

References for CVE-2023-2731