Bug 2573242 (CVE-2026-129118) - CVE-2026-129118 ckermit: ckermit: Host impersonation via improper certificate hostname validation
Summary: CVE-2026-129118 ckermit: ckermit: Host impersonation via improper certificate...
Keywords:
Status: NEW
Alias: CVE-2026-129118
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-13 16:32 UTC by OSIDB Bzimport
Modified: 2026-11-13 16:42 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-11-13 16:32:00 UTC 
C-Kermit 8.0.200 before 11.1.515 contains an improper certificate hostname validation vulnerability that allows attackers to impersonate hosts by abusing wildcard matching in dNSName_cmp() in ck_ssl.c. Attackers holding a trusted certificate with over-matching names containing asterisks, question marks, brackets, or empty labels can intercept credentials and data over Telnet, FTP, and HTTP TLS connections.
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