Bug 2573246 (CVE-2026-129123) - CVE-2026-129123 ckermit: ckermit: Arbitrary code execution via overly long FTP server replies
Summary: CVE-2026-129123 ckermit: ckermit: Arbitrary code execution via overly long FT...
Keywords:
Status: NEW
Alias: CVE-2026-129123
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
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 16:44 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-11-13 16:32:17 UTC 
C-Kermit 8.0.200 before 11.1.515 contains a buffer overflow vulnerability in getreply() in ckcftp.c that allows malicious FTP servers to overwrite client memory by sending overlong security replies. Attackers controlling or intercepting an FTP server can send long PBSZ replies after AUTH TLS, or long ADAT replies in GSSAPI, Kerberos 4, and SRP builds, overflowing the static reply_buf with attacker-controlled bytes.
Note You need to log in before you can comment on or make changes to this bug.