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CVE PROGRAM SOURCE RECORD6.1 Medium

CVE-2026-43618

Rsync < 3.4.3 Integer Overflow Information Disclosure

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Status
Published
Published
Updated
Assigning organization
VulnCheck

Description

Rsync version 3.4.2 and prior contain an integer overflow vulnerability in the compressed-token decoder where a 32-bit signed counter is not checked for overflow, allowing a malicious sender to trigger an overflow that causes the receiver process to read and return data from outside the intended buffer bounds. Attackers can exploit this vulnerability to disclose process memory contents including environment variables, passwords, heap and stack data, and library memory pointers, significantly reducing ASLR effectiveness and facilitating further exploitation.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

RsyncProject rsync

Default version status: unaffected

  • 0 to < 3.4.3affected
pkg:github/RsyncProject/rsync

References