_TIFFCheckMalloc and _TIFFCheckRealloc in tif_aux.c in LibTIFF through 4.0.10 mishandle…
Priority LOW 36CWE-190Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 10 fixed, 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-190 and the CVSS impact.
Summary
_TIFFCheckMalloc and _TIFFCheckRealloc in tif_aux.c in LibTIFF through 4.0.10 mishandle Integer Overflow checks because they rely on compiler behavior that is undefined by the applicable C standards. This can, for example, lead to an application crash.
Why it matters now
EPSS 0.04204 91st percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 10 fixed, 2 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:libtiff:libtiff:*:*:*:*:*:*:*:* | up to 4.0.10 | Vulnerable | libtiff |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
| cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* | 30 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* | 31 | Vulnerable | Fedoraproject |
| cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* | 15.1 | Vulnerable | openSUSE |
| cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* | 15.2 | Vulnerable | openSUSE |
- cpe:2.3:a:libtiff:libtiff:*:*:*:*:*:*:*:* Versions up to 4.0.10 Vulnerable ·libtiff
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
- cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* Versions 30 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* Versions 31 Vulnerable ·Fedoraproject
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·openSUSE
- cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* Versions 15.2 Vulnerable ·openSUSE
Remediation
Red Hat 2 advisories
- RHSA-2020:3902 Released 2020-09-29 · Red Hat rating Moderatelibtiff security update
- Red Hat Enterprise Linux Client (v. 7) libtiff-4.0.3-35.el7
- Red Hat Enterprise Linux Client Optional (v. 7) libtiff-devel-4.0.3-35.el7, libtiff-static-4.0.3-35.el7, libtiff-tools-4.0.3-35.el7
- Red Hat Enterprise Linux ComputeNode (v. 7) libtiff-4.0.3-35.el7
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) libtiff-devel-4.0.3-35.el7, libtiff-static-4.0.3-35.el7, libtiff-tools-4.0.3-35.el7
- Red Hat Enterprise Linux Server (v. 7) libtiff-4.0.3-35.el7, libtiff-4.0.3-35.el7.ppc, libtiff-devel-4.0.3-35.el7 +1
- Red Hat Enterprise Linux Server Optional (v. 7) libtiff-static-4.0.3-35.el7, libtiff-static-4.0.3-35.el7.ppc, libtiff-tools-4.0.3-35.el7
- Red Hat Enterprise Linux Workstation (v. 7) libtiff-4.0.3-35.el7, libtiff-devel-4.0.3-35.el7
- Red Hat Enterprise Linux Workstation Optional (v. 7) libtiff-static-4.0.3-35.el7, libtiff-tools-4.0.3-35.el7
- RHSA-2020:1688 Released 2020-04-28 · Red Hat rating Moderatelibtiff security update
- Red Hat CodeReady Linux Builder (v. 8) libtiff-tools-4.0.9-17.el8
- Red Hat Enterprise Linux AppStream (v. 8) libtiff-4.0.9-17.el8, libtiff-devel-4.0.9-17.el8
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat CodeReady Linux Builder (v. 8) | Fixed | RHSA-2020:1688 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2020:1688 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2020:3902 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2020:3902 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2020:3902 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2020:3902 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2020:3902 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2020:3902 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2020:3902 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2020:3902 |
Timeline
- 2026-10-02 Threatist record created from CVE-2019-14973
- 2026-10-03 Alias added: GHSA-2586-jx35-m7r7
References
Advisory 10
- [debian-lts-announce] 20190825 [SECURITY] [DLA 1897-1] tiff security update
- 20191104 [slackware-security] libtiff (SSA:2019-308-01)
- http://packetstormsecurity.com/files/155095/Slackware-Security-Advisory-libtiff-Updates.html
- FEDORA-2019-6eeff0f801
- FEDORA-2019-e45019c690
- 20200121 [SECURITY] [DSA 4608-1] tiff security update
- DSA-4608
- DSA-4670
- openSUSE-SU-2020:1561
- openSUSE-SU-2020:1840
Sources
- CVE-2019-14973 · CVE Program
- CVE-2019-14973 · NVD
- FIRST EPSS
- GHSA-2586-jx35-m7r7 · GitHub Advisory Database · CC BY 4.0
- CVE-2019-14973 · Red Hat security data · CC BY 4.0
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