CVE-2018-18557

LibTIFF 3.9.3, 3.9.4, 3.9.5, 3.9.6, 3.9.7, 4.0.0alpha4, 4.0.0alpha5, 4.0.0alpha6, 4.0.0beta7, 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.4beta, 4.0.5, 4.0.6, 4.0.7, 4.0.8 and 4.0.9 (with JBIG enabled) decodes arbitrarily-sized JBIG into a buffer, ignoring the buffer size, which leads to a tif_jbig.c JBIGDecode out-of-bounds write.

• CWE-787

• https://access.redhat.com/errata/RHSA-2019:2053
• https://github.com/Hack-Me/Pocs_for_Multi_Versions/tree/main/CVE-2018-18557
• https://gitlab.com/libtiff/libtiff/commit/681748ec2f5ce88da5f9fa6831e1653e46af8a66
• https://gitlab.com/libtiff/libtiff/merge_requests/38Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2018/10/msg00019.htmlMailing List, Third Party Advisory
• https://security.gentoo.org/glsa/201904-15
• https://usn.ubuntu.com/3864-1/Third Party Advisory
• https://usn.ubuntu.com/3906-2/
• https://www.debian.org/security/2018/dsa-4349Third Party Advisory
• https://www.exploit-db.com/exploits/45694/Exploit, Third Party Advisory, VDB Entry
• https://access.redhat.com/errata/RHSA-2019:2053
• https://github.com/Hack-Me/Pocs_for_Multi_Versions/tree/main/CVE-2018-18557
• https://gitlab.com/libtiff/libtiff/commit/681748ec2f5ce88da5f9fa6831e1653e46af8a66
• https://gitlab.com/libtiff/libtiff/merge_requests/38Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2018/10/msg00019.htmlMailing List, Third Party Advisory
• https://security.gentoo.org/glsa/201904-15
• https://usn.ubuntu.com/3864-1/Third Party Advisory
• https://usn.ubuntu.com/3906-2/
• https://www.debian.org/security/2018/dsa-4349Third Party Advisory
• https://www.exploit-db.com/exploits/45694/Exploit, Third Party Advisory, VDB Entry

Published

Oct 22, 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.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2018-18550ServersCheck Monitoring Software before 14.3.4 allows SQL In…
• CVE-2018-18551ServersCheck Monitoring Software through 14.3.3 has Persiste…
• CVE-2018-18552ServersCheck Monitoring Software through 14.3.3 allows local…
• CVE-2018-18553Leanote 2.6.1 has XSS via the Blog Basic Setting title field…
• CVE-2018-18555A sandbox escape issue was discovered in VyOS 1.1.8. It prov…
• CVE-2018-18556A privilege escalation issue was discovered in VyOS 1.1.8. T…9.9
• CVE-2018-18558An issue was discovered in Espressif ESP-IDF 2.x and 3.x bef…
• CVE-2018-18559In the Linux kernel through 4.19, a use-after-free can occur…8.1
• CVE-2018-18561An issue was discovered in Roche Accu-Chek Inform II Base Un…
• CVE-2018-18562An issue was discovered in Roche Accu-Chek Inform II Base Un…
• CVE-2018-18563An issue was discovered in Roche Accu-Chek Inform II Instrum…
• CVE-2018-18564An issue was discovered in Roche Accu-Chek Inform II Instrum…