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  5. CVE-2023-43669

CVE-2023-43669: Tungstenite allows remote attackers to cause a denial of service

September 21, 2023 (updated February 16, 2024)

The Tungstenite crate through 0.20.0 for Rust allows remote attackers to cause a denial of service (minutes of CPU consumption) via an excessive length of an HTTP header in a client handshake. The length affects both how many times a parse is attempted (e.g., thousands of times) and the average amount of data for each parse attempt (e.g., millions of bytes).

References

  • bugzilla.redhat.com/show_bug.cgi?id=2240110
  • bugzilla.suse.com/show_bug.cgi?id=1215563
  • crates.io/crates/tungstenite/versions
  • cwe.mitre.org/data/definitions/407.html
  • github.com/advisories/GHSA-9mcr-873m-xcxp
  • github.com/github/advisory-database/pull/2752
  • github.com/snapview/tungstenite-rs
  • github.com/snapview/tungstenite-rs/commit/8b3ecd3cc0008145ab4bc8d0657c39d09db8c7e2
  • github.com/snapview/tungstenite-rs/issues/376
  • github.com/snapview/tungstenite-rs/pull/379
  • lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R77EUWPZVP5WSMNXUXUDNHR7G7OI5NGM
  • lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/THK6G6CD4VW6RCROWUV2C4HSINKK3XAK
  • lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TT7SF6CQ5VHAGFLWNXY64NFSW4WIWE7D
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R77EUWPZVP5WSMNXUXUDNHR7G7OI5NGM
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/THK6G6CD4VW6RCROWUV2C4HSINKK3XAK
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TT7SF6CQ5VHAGFLWNXY64NFSW4WIWE7D
  • nvd.nist.gov/vuln/detail/CVE-2023-43669
  • rustsec.org/advisories/RUSTSEC-2023-0065.html
  • security-tracker.debian.org/tracker/CVE-2023-43669

Code Behaviors & Features

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Affected versions

All versions before 0.20.1

Fixed versions

  • 0.20.1

Solution

Upgrade to version 0.20.1 or above.

Impact 7.5 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Learn more about CVSS

Weakness

  • CWE-400: Uncontrolled Resource Consumption

Source file

cargo/tungstenite/CVE-2023-43669.yml

Spotted a mistake? Edit the file on GitLab.

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