CVE-2021-21173: channel information leakage in Network Internals
Side-channel information leakage in Network Internals in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page.
Credit
Affected Software
Remediation
Patch Available
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2021-21159
- CVE-2021-21160
- CVE-2021-21161
- CVE-2021-21162
- CVE-2021-21163
- CVE-2021-21164
- CVE-2021-21165
- CVE-2021-21166
- CVE-2021-21167
- CVE-2021-21168
- CVE-2021-21169
- CVE-2021-21170
- CVE-2021-21171
- CVE-2021-21172
- CVE-2021-21174
- CVE-2021-21175
- CVE-2021-21176
- CVE-2021-21177
- CVE-2021-21178
- CVE-2021-21179
- CVE-2021-21180
- CVE-2020-27844
- CVE-2021-21181
- CVE-2021-21182
- CVE-2021-21183
- CVE-2021-21184
- CVE-2021-21185
- CVE-2021-21186
- CVE-2021-21187
- CVE-2021-21188
- CVE-2021-21189
- CVE-2021-21190
- CVE-2021-21200
Frequently Asked Questions
What is the severity of CVE-2021-21173?
CVE-2021-21173 is classified as a medium severity vulnerability due to its potential for side-channel information leakage.
What impact does CVE-2021-21173 have on users?
CVE-2021-21173 allows a remote attacker to leak cross-origin data from users who visit a specially crafted HTML page.
How do I fix CVE-2021-21173?
To fix CVE-2021-21173, ensure you update to Google Chrome version 90.0.4430.212 or later.
Which software versions are affected by CVE-2021-21173?
CVE-2021-21173 affects Google Chrome versions prior to 89.0.4389.72 and specific versions of Chromium on Debian.
Is CVE-2021-21173 exploitable through user interaction?
Yes, CVE-2021-21173 requires user interaction, as the victim must visit a maliciously crafted HTML page.