Candidate: CVE-2021-32740
PublicDate: 2021-07-06 15:15:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32740
 https://github.com/sporkmonger/addressable/security/advisories/GHSA-jxhc-q857-3j6g
 https://github.com/sporkmonger/addressable/commit/b48ff03347a6d46e8dc674e242ce74c6381962a5#diff-fb36d3dc67e6565ffde17e666a98697f48e76dac38fabf1bb9e97cdf3b583d76
 https://github.com/sporkmonger/addressable/commit/0d8a3127e35886ce9284810a7f2438bff6b43cbc
Description:
 Addressable is an alternative implementation to the URI implementation that
 is part of Ruby's standard library. An uncontrolled resource consumption
 vulnerability exists after version 2.3.0 through version 2.7.0. Within the
 URI template implementation in Addressable, a maliciously crafted template
 may result in uncontrolled resource consumption, leading to denial of
 service when matched against a URI. In typical usage, templates would not
 normally be read from untrusted user input, but nonetheless, no previous
 security advisory for Addressable has cautioned against doing this. Users
 of the parsing capabilities in Addressable but not the URI template
 capabilities are unaffected. The vulnerability is patched in version 2.8.0.
 As a workaround, only create Template objects from trusted sources that
 have been validated not to produce catastrophic backtracking.
Ubuntu-Description:
Notes:
Mitigation:
Bugs:
 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=990791
Priority: low
Discovered-by:
Assigned-to:
CVSS:
 nvd: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H [7.5 HIGH]


Patches_ruby-addressable:
upstream_ruby-addressable: released (2.7.0-2)
trusty_ruby-addressable: ignored (out of standard support)
trusty/esm_ruby-addressable: DNE
xenial_ruby-addressable: ignored (out of standard support)
bionic_ruby-addressable: needs-triage
focal_ruby-addressable: needs-triage
groovy_ruby-addressable: ignored (reached end-of-life)
hirsute_ruby-addressable: ignored (reached end-of-life)
impish_ruby-addressable: not-affected (2.7.0-2)
jammy_ruby-addressable: not-affected (2.7.0-2)
devel_ruby-addressable: not-affected (2.7.0-2)