What is CVE-2023-2731?

CVE-2023-2731 is a medium-severity vulnerability in Libtiff, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2023-05-17.

How severe is CVE-2023-2731?

Medium severity. CVSS v3 base score is 5.5 out of 10.

NULL pointer dereference in Libtiff

CVE-2023-2731

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.

EPSS: 0.004 (35.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Libtiff
Fedoraproject Fedora — versions 38
Redhat Enterprise_linux — versions 9.0
N/a Libtiff — versions Fixed in libtiff v4.5.0

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

secalert@redhat.com (Exploit, Patch, Third Party Advisory, Issue Tracking)
secalert@redhat.com (Patch, Third Party Advisory, Issue Tracking)
secalert@redhat.com (Patch)
secalert@redhat.com (Third Party Advisory)
secalert@redhat.com

Frequently asked questions

What is CVE-2023-2731?: CVE-2023-2731 is a medium-severity vulnerability in Libtiff, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2023-05-17.
How severe is CVE-2023-2731?: Medium severity. CVSS v3 base score is 5.5 out of 10.