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CVE-2018-12900

40
FAUCET Score

CVE-2018-12900 describes a heap-based buffer overflow in the LibTIFF library, specifically within the cpSeparateBufToContigBuf function, affecting versions 3.9.3 through 4.0.9. This vulnerability allows remote attackers to cause a denial of service or potentially achieve other impacts by tricking a user into opening a specially crafted TIFF file. With a CVSS score of 8.8 (High), it poses a significant risk due to its network-based attack vector and low attack complexity, potentially leading to high impact on confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, and no public exploit code or significant community discussion has been identified.

Impacted Technologies

VendorProductVersion(s)CPE
4.0.9CPE matchmatch criteria
cpe:2.3:a:libtiff:libtiff:4.0.9:*:*:*:*:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
18.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
25.18%
Probability of exploitation in next 30 days
EPSS Percentile
97.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.2518 is in the 98th percentile among its peer group of 14,848 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: libtiff-0:4.0.3-32.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: libtiff-0:4.0.9-15.el8
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: libtiff
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libtiff

Vendor Advisories (1)

redhatCVE-2018-12900Moderate

libtiff: Heap-based buffer overflow in the cpSeparateBufToContigBuf function resulting in a denial of service or possibly code execution

Jun 26, 2018

References

bugzilla.maptools.org / show_bug.cgi
ExploitIssue TrackingThird Party Advisory
access.redhat.com / errata/RHSA-2019:2053
access.redhat.com / errata/RHSA-2019:3419
github.com / Hack-Me/Pocs_for_Multi_Versions/tree/main/CVE-2018-12900
lists.debian.org / debian-lts-announce/2019/11/msg00027.html
usn.ubuntu.com / 3906-1
Third Party Advisory
usn.ubuntu.com / 3906-2
debian.org / security/2020/dsa-4670