Bug 2565516

Summary: CVE-2026-119146 proftpd: proftpd: Denial of Service via buffer overflow in mod_rewrite [fedora-43]
Product: [Fedora] Fedora Reporter: Ganesh <gnaik>
Component: proftpdAssignee: Paul Howarth <paul>
Status: MODIFIED --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 43CC: kristian.marcroft, paul
Target Milestone: ---Keywords: Security, SecurityTracking
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Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["3a3a0aad-ff63-4b3f-805f-967fa47fdf6b"]}
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On:    
Bug Blocks: 2563987    

Description Ganesh 2026-11-03 02:31:34 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

ProFTPD before 1.3.9e and 1.3.10rc5 contains a buffer overflow vulnerability in the mod_rewrite int:utf8trans RewriteMap that allows remote attackers to overwrite static buffers. Attackers can send FTP command arguments longer than 1024 bytes, without authentication if pre-login commands are rewritten, to corrupt session memory and crash the session.
Comment 1 Fedora Update System 2026-11-05 17:15:26 UTC 
FEDORA-2026-d2e76a72c7 (proftpd-1.3.9e-2.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-d2e76a72c7