CVE-2018-19210

In LibTIFF 4.0.9, there is a NULL pointer dereference in the TIFFWriteDirectorySec function in tif_dirwrite.c that will lead to a denial of service attack, as demonstrated by tiffset.

• CWE-476

• http://bugzilla.maptools.org/show_bug.cgi?id=2820Exploit, Issue Tracking, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00041.html
• http://packetstormsecurity.com/files/155095/Slackware-Security-Advisory-libtiff-Updates.html
• http://www.securityfocus.com/bid/105932Third Party Advisory, VDB Entry
• https://lists.debian.org/debian-lts-announce/2019/02/msg00026.htmlMailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C6IL2QFKE6MGVUTOPU2UUWITTE36KRDF/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TX5UEYHGMTNEHJB4FHE7HCJ75UQDNKGB/
• https://seclists.org/bugtraq/2019/Nov/5
• https://security.gentoo.org/glsa/202003-25
• https://usn.ubuntu.com/3906-1/Third Party Advisory
• https://www.debian.org/security/2020/dsa-4670
• http://bugzilla.maptools.org/show_bug.cgi?id=2820Exploit, Issue Tracking, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00041.html
• http://packetstormsecurity.com/files/155095/Slackware-Security-Advisory-libtiff-Updates.html
• http://www.securityfocus.com/bid/105932Third Party Advisory, VDB Entry
• https://lists.debian.org/debian-lts-announce/2019/02/msg00026.htmlMailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C6IL2QFKE6MGVUTOPU2UUWITTE36KRDF/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TX5UEYHGMTNEHJB4FHE7HCJ75UQDNKGB/
• https://seclists.org/bugtraq/2019/Nov/5
• https://security.gentoo.org/glsa/202003-25
• https://usn.ubuntu.com/3906-1/Third Party Advisory
• https://www.debian.org/security/2020/dsa-4670

Published

Nov 12, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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