HistoryEdit

RUSTSEC-2017-0005

Large cookie Max-Age values can cause a denial of service

Reported
Issued
Package
cookie (crates.io)
Type
Vulnerability
Keywords
#crash
Aliases
Details
https://github.com/alexcrichton/cookie-rs/pull/86
CVSS Score
7.5 HIGH
CVSS Details
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Patched
  • <0.6.0
  • ^0.6.2
  • >=0.7.6

Description

Affected versions of this crate use the time crate and the method Duration::seconds to parse the Max-Age duration cookie setting. This method will panic if the value is greater than 2^64/1000 and less than or equal to 2^64, which can result in denial of service for a client or server.

This flaw was corrected by explicitly checking for the Max-Age being in this integer range and clamping the value to the maximum duration value.