Bug 2520138 - CVE-2026-70456 rsync-bpc: rsync: Heap Out-of-Bounds Write via crafted argument list [epel-all]
Summary: CVE-2026-70456 rsync-bpc: rsync: Heap Out-of-Bounds Write via crafted argumen...
Keywords:
Status: NEW
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: rsync-bpc
Version: epel10
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Richard Shaw
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["8d21fcf2-54e0-422f-8f07-0...
Depends On:
Blocks: CVE-2026-70456
TreeView+ depends on / blocked
 
Reported: 2026-08-20 07:06 UTC by Srikanth Balasubramanian
Modified: 2026-08-20 07:06 UTC (History)
1 user (show)

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


Attachments (Terms of Use)

Description Srikanth Balasubramanian 2026-08-20 07:06:58 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.

rsync 3.0.1 before 3.5.0 contains an out-of-bounds write vulnerability in the read_args() function that allows a malicious sender to corrupt adjacent heap memory by sending a crafted argument list. When the argument count causes the argv allocation to be exactly full, the trailing NULL terminator is written one slot beyond the allocation boundary, corrupting adjacent heap memory.


Note You need to log in before you can comment on or make changes to this bug.