CVE-2019-14973
_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.
Does this matter?
Lower severity and a low EPSS score (4.20%). Track it; it rarely justifies an emergency change on its own.
Description
_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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 4.20% probability · 91th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- libtiff/libtiff · debian/debian linux · fedoraproject/fedora · opensuse/leap
- Source
- cve@mitre.org
EPSS 4.2% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00102.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00023.htmlMailing List, Third Party Advisory
- http://packetstormsecurity.com/files/155095/Slackware-Security-Advisory-libtiff-Updates.htmlThird Party Advisory, VDB Entry
- https://gitlab.com/libtiff/libtiff/merge_requests/90Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/08/msg00031.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/63BVT6N5KQPHWOWM4B3I7Z3ODBXUVNPS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ADNPG7JJTRRK22GUVTAFH3GJ6WGKUZJB/
- https://seclists.org/bugtraq/2019/Nov/5Mailing List, Third Party Advisory
- https://seclists.org/bugtraq/2020/Jan/32Mailing List, Third Party Advisory
- https://www.debian.org/security/2020/dsa-4608Third Party Advisory
- https://www.debian.org/security/2020/dsa-4670Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00102.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00023.htmlMailing List, Third Party Advisory
- http://packetstormsecurity.com/files/155095/Slackware-Security-Advisory-libtiff-Updates.htmlThird Party Advisory, VDB Entry
- https://gitlab.com/libtiff/libtiff/merge_requests/90Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/08/msg00031.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/63BVT6N5KQPHWOWM4B3I7Z3ODBXUVNPS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ADNPG7JJTRRK22GUVTAFH3GJ6WGKUZJB/
- https://seclists.org/bugtraq/2019/Nov/5Mailing List, Third Party Advisory
- https://seclists.org/bugtraq/2020/Jan/32Mailing List, Third Party Advisory
- https://www.debian.org/security/2020/dsa-4608Third Party Advisory
- https://www.debian.org/security/2020/dsa-4670Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.