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[20.03] coturn: apply patch for CVE-2020-6061/6062 #86270

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Motivation for this change

Fixes: CVE-2020-6061, CVE-2020-6062

An exploitable heap overflow vulnerability exists in the way CoTURN
4.5.1.1 web server parses POST requests. A specially crafted HTTP
POST request can lead to information leaks and other misbehavior.
An attacker needs to send an HTTPS request to trigger this vulnerability.

An exploitable denial-of-service vulnerability exists in the way
CoTURN 4.5.1.1 web server parses POST requests. A specially crafted
HTTP POST request can lead to server crash and denial of service.
An attacker needs to send an HTTP request to trigger this vulnerability.

(cherry picked from commit 14ade05e74aaa310a42dab480120311f86f1e859)

Backport of #86268

Things done
  • Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
  • Built on platform(s)
    • NixOS
    • macOS
    • other Linux distributions
  • Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
  • Tested compilation of all pkgs that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review wip"
  • Tested execution of all binary files (usually in ./result/bin/)
  • Determined the impact on package closure size (by running nix path-info -S before and after)
  • Ensured that relevant documentation is up to date
  • Fits CONTRIBUTING.md.

Fixes: CVE-2020-6061, CVE-2020-6062

An exploitable heap overflow vulnerability exists in the way CoTURN
4.5.1.1 web server parses POST requests. A specially crafted HTTP
POST request can lead to information leaks and other misbehavior.
An attacker needs to send an HTTPS request to trigger this vulnerability.

An exploitable denial-of-service vulnerability exists in the way
CoTURN 4.5.1.1 web server parses POST requests. A specially crafted
HTTP POST request can lead to server crash and denial of service.
An attacker needs to send an HTTP request to trigger this vulnerability.

(cherry picked from commit 704a018)
@mweinelt mweinelt force-pushed the 20.03/coturn/CVE-2020-6061+6062 branch from 18b5440 to 142060c Compare April 29, 2020 10:55
@rasendubi rasendubi merged commit 2a7c7cb into NixOS:release-20.03 Apr 29, 2020
@mweinelt mweinelt deleted the 20.03/coturn/CVE-2020-6061+6062 branch April 29, 2020 14:14
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2 participants