CVE-2023-43669
High
Description
The Tungstenite crate before 0.20.1 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).
SeverityHigh
CVSS7.5
Exploit probability—
Product
Snapview Tungstenite
PublishedSep 21, 2023
First seenSep 21, 2023
How to fix
Vendor advisories
- 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%40lists.fedoraproject.org/message/R77EUWPZVP5WSMNXUXUDNHR7G7OI5NGM/
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| snapview tungstenite | v ≤ 0.20.0 | — |
| fedoraproject fedora | 37, 38, 39 | — |
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