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Details of issue NIXPKGS-2026-1675

NIXPKGS-2026-1675
published 3 weeks, 3 days ago
Permalink CVE-2026-45232
2.1 LOW
  • CVSS version (CVSS): 4.0
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): High (H)
  • Attack Requirement (AT): None (N)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): Active (A)
  • Vulnerable System Impact Confidentiality (VC): None (N)
  • Vulnerable System Impact Integrity (VI): None (N)
  • Vulnerable System Impact Availability (VA): Low (L)
  • Subsequent System Impact Confidentiality (SC): None (N)
  • Subsequent System Impact Integrity (SI): None (N)
  • Subsequent System Impact Availability (SA): None (N)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): High (H)
  • Modified Attack Requirement (MAT): None (N)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): Active (A)
  • Modified Vulnerable System Impact Confidentiality (MVC): None (N)
  • Modified Vulnerable System Impact Integrity (MVI): None (N)
  • Modified Vulnerable System Impact Availability (MVA): Low (L)
  • Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
  • Modified Subsequent System Impact Integrity (MSI): Negligible (N)
  • Modified Subsequent System Impact Availability (MSA): Negligible (N)
  • Safety (S): Not Defined (X)
  • Automatable (AU): Not Defined (X)
  • Recovery (R): Not Defined (X)
  • Value Density (V): Not Defined (X)
  • Vulnerability Response Effort (RE): Not Defined (X)
  • Provider Urgency (U): Not Defined (X)
  • Confidentiality Req. (CR): Not Defined (X)
  • Integrity Req. (IR): Not Defined (X)
  • Availability Req. (AR): Not Defined (X)
  • Exploit Maturity (E): Not Defined (X)
updated 3 weeks, 3 days ago by @LeSuisse Activity log
  • Created suggestion
  • @LeSuisse ignored
    19 packages
    • grsync
    • rrsync
    • rsyncy
    • btrsync
    • parsync
    • librsync
    • diskrsync
    • openrsync
    • vdirsyncer
    • sqlite-rsync
    • yaziPlugins.rsync
    • python313Packages.btrsync
    • python314Packages.btrsync
    • python312Packages.sysrsync
    • python313Packages.sysrsync
    • python314Packages.sysrsync
    • python312Packages.vdirsyncer
    • python313Packages.vdirsyncer
    • python314Packages.vdirsyncer
  • @LeSuisse ignored maintainer @ivan maintainer.ignore
  • @LeSuisse accepted
  • @LeSuisse ignored reference https://w…
  • @LeSuisse published on GitHub
Rsync < 3.4.3 Off-by-One Stack Write via HTTP Proxy

Rsync versions before 3.4.3 contain an off-by-one out-of-bounds stack write vulnerability in the establish_proxy_connection() function in socket.c that allows network attackers to corrupt stack memory by sending a malformed HTTP proxy response. Attackers can exploit this by positioning themselves between the client and proxy or controlling the proxy server to send a response line of 1023 or more bytes without a newline terminator, causing a null byte to be written to an out-of-bounds stack address when the RSYNC_PROXY environment variable is set.

Affected products

rsync
  • <3.4.3

Matching in nixpkgs

pkgs.rsync

Fast incremental file transfer utility

Ignored packages (19)

pkgs.grsync

Synchronize folders, files and make backups

pkgs.rrsync

Helper to run rsync-only environments from ssh-logins

pkgs.rsyncy

Progress bar wrapper for rsync

pkgs.btrsync

Btrfs replication made easy

  • nixos-unstable 0.3
    • nixpkgs-unstable 0.3
    • nixos-unstable-small 0.3

pkgs.parsync

Tool to parallel rsync-like pull sync over SSH

pkgs.librsync

Implementation of the rsync remote-delta algorithm

pkgs.diskrsync

Rsync for block devices and disk images

Package maintainers