Bug 2523231

Summary: CVE-2026-78322 file-roller: file-roller: stack buffer overflow in parse_progress_line for 7z and RAR handlers [epel-all]
Product: [Fedora] Fedora EPEL Reporter: Ganesh <gnaik>
Component: file-rollerAssignee: Matthias Clasen <mclasen>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: epel10CC: gnome-sig, mclasen, rstrode
Target Milestone: ---Keywords: Security, SecurityTracking
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Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["f3d205dc-a8f4-4fb5-97f5-8950fcff2121"]}
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On:    
Bug Blocks: 2521767    

Description Ganesh 2026-08-25 04:54:10 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.

A stack-based buffer overflow exists in file-roller's parse_progress_line() functions in the 7z and RAR archive backends (src/fr-command-7z.c and src/fr-command-rar.c). When processing output from the 7z or rar subprocess, file paths from archive entries are copied with strcpy() into fixed-size stack buffers (4196 and 4096 bytes) without length validation. An archive containing a file entry with a path longer than these buffers causes a stack buffer overflow when the user opens or extracts the archive in file-roller, resulting in denial of service (process termination). Practical code execution is considered difficult on hardened builds with stack canaries, PIE, and ASLR.

Reported upstream as https://gitlab.gnome.org/GNOME/file-roller/-/issues/327 by Yukihiro Nakamura. 
Fixed upstream in commit ffb76dc866342cef6a4914873faaa880d14d5aa4 ("Check line length when parsing command output"), first released in file-roller 44.7.