Bug 2546599 (CVE-2026-105842) - CVE-2026-105842 lrzsz: lrzsz: Denial of Service via heap-based buffer overflow from oversized filenames
Summary: CVE-2026-105842 lrzsz: lrzsz: Denial of Service via heap-based buffer overflo...
Keywords:
Status: NEW
Alias: CVE-2026-105842
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: 2546644
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-06 13:49 UTC by OSIDB Bzimport
Modified: 2026-10-06 15:55 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-10-06 13:49:00 UTC 
lrzsz before 0.13.0 contains a heap-based buffer overflow vulnerability in procheader() of the lrz receive utility when copying overlong sender-supplied filenames into Pathname. Malicious ZMODEM senders can supply filenames up to 8192 bytes, overflowing the buffer via sprintf() in pipe mode or strcpy() to corrupt heap memory and crash lrz.
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