Vulnerability Details : CVE-2018-18661
Potential exploit
An issue was discovered in LibTIFF 4.0.9. There is a NULL pointer dereference in the function LZWDecode in the file tif_lzw.c.
Vulnerability category: Memory Corruption
Products affected by CVE-2018-18661
- cpe:2.3:a:libtiff:libtiff:4.0.9:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-18661
0.26%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 50 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-18661
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2018-18661
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-18661
-
http://www.securityfocus.com/bid/105762
LibTIFF CVE-2018-18661 Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
https://usn.ubuntu.com/3864-1/
USN-3864-1: LibTIFF vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2019/11/msg00027.html
[SECURITY] [DLA 2009-1] tiff security update
-
https://access.redhat.com/errata/RHSA-2019:2053
RHSA-2019:2053 - Security Advisory - Red Hat Customer Portal
-
http://bugzilla.maptools.org/show_bug.cgi?id=2819
Bug 2819 – There is a NULL pointer dereference at function LZWDecode in libtiff 4.0.9 (CVE-2018-18661)Exploit;Issue Tracking;Patch;Third Party Advisory
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