Bug 2510211 - CVE-2026-43618 rsync-bpc: rsync: Remote memory disclosure via integer overflow in compressed-token decoding [fedora-all]
Summary: CVE-2026-43618 rsync-bpc: rsync: Remote memory disclosure via integer overflo...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: rsync-bpc
Version: 45
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Richard Shaw
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["e5e4a464-81d4-493e-9d79-9...
Depends On:
Blocks: CVE-2026-43618
TreeView+ depends on / blocked
 
Reported: 2026-08-03 02:36 UTC by Patrick Del Bello
Modified: 2026-08-17 15:44 UTC (History)
1 user (show)

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


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Description Patrick Del Bello 2026-08-03 02:36:11 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 flaw was found in rsync. An authenticated daemon peer can exploit an integer overflow vulnerability in the compressed-token decoder. By carefully manipulating the compressed-token, a malicious sender can trigger an overflow, leading to remote memory disclosure. This allows an attacker to leak sensitive process memory contents, including environment variables, passwords, and memory pointers, which significantly weakens Address Space Layout Randomization (ASLR) and can facilitate further exploitation.

Comment 1 Aoife Moloney 2026-08-17 15:44:47 UTC
This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle.
Changing version to 45.


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