by Kastro
Paper/Archive/CVE-2022-3095

CVE-2022-3095

Google LLC Dart — Incorrect parsing of the backslash characters in Dart library

EPSS 1%CVSS 9.8
critical.is priorityof 100
43
CVSS 9.8 (NVD, CNA agree)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 67.3.673 × 2013.5No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

The implementation of backslash parsing in the Dart URI class for versions prior to 2.18 and Flutter versions prior to 3.30 differs from the WhatWG URL standards. Dart uses the RFC 3986 syntax, which creates incompatibilities with the '\' characters in URIs, which can lead to auth bypass in webapps interpreting URIs. We recommend updating Dart or Flutter to mitigate the issue.

Affected

ProductAffectedFixed inSource
Dartstable – < 2.18.22.18.2CNA
DartFlutter – < 3.3.33.3.3CNA

Scores by source

Google (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refgithub.com/dart-lang/sdk/blob/master/CHANGELOG.md#2182---2022-09-28