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CVE-2019-14973

23
FAUCET Score

CVE-2019-14973 is an integer overflow vulnerability in LibTIFF versions through 4.0.10, specifically within the _TIFFCheckMalloc and _TIFFCheckRealloc functions in tif_aux.c, due to reliance on undefined compiler behavior. This flaw primarily affects products utilizing LibTIFF, such as Debian, Fedora, and openSUSE, and can lead to application crashes. With a CVSS score of 6.5 (Medium), it requires user interaction (UI:R) and can be exploited over the network (AV:N), resulting in high availability impact (A:H). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, indicating a low current threat landscape.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.0.10CPE matchmatch criteria
cpe:2.3:a:libtiff:libtiff:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
30CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.20%
Probability of exploitation in next 30 days
EPSS Percentile
89.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0420 is in the 96th percentile among its peer group of 26,236 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: libtiff-0:4.0.3-35.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: libtiff-0:4.0.9-17.el8
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libtiff

Vendor Advisories (1)

redhatCVE-2019-14973Moderate

libtiff: integer overflow in _TIFFCheckMalloc and _TIFFCheckRealloc in tif_aux.c

Aug 14, 2019

References

lists.opensuse.org / opensuse-security-announce/2020-09/msg00102.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2020-11/msg00023.html
Mailing ListThird Party Advisory
packetstormsecurity.com / files/155095/Slackware-Security-Advisory-libtiff-Updates.html
Third Party AdvisoryVDB Entry
gitlab.com / libtiff/libtiff/merge_requests/90
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2019/08/msg00031.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/63BVT6N5KQPHWOWM4B3I7Z3ODBXUVNPS
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/ADNPG7JJTRRK22GUVTAFH3GJ6WGKUZJB
seclists.org / bugtraq/2019/Nov/5
Mailing ListThird Party Advisory
seclists.org / bugtraq/2020/Jan/32
Mailing ListThird Party Advisory
debian.org / security/2020/dsa-4608
Third Party Advisory
debian.org / security/2020/dsa-4670
Third Party Advisory