CVE-2020-12409 — Mozilla Firefox vulnerability

7 documents6 sources
Severity
8.8HIGHNVD
OSV4.4
EPSS
0.2%
top 53.68%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Mozilla FirefoxDebian Firefox
Timeline
PublishedJul 9
Latest updateMay 24

Description

When using certain blank characters in a URL, they where incorrectly rendered as spaces instead of an encoded URL. This vulnerability affects Firefox < 77.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages5 packages

▶debiandebian/firefox< firefox 77.0-1 (sid)
▶CVEListV5mozilla/firefoxunspecified — 77
▶NVDmozilla/firefox< 77.0
▶Ubuntumozilla/firefox< 77.0.1+build1-0ubuntu0.16.04.1+2
▶mozillamozilla/firefox

🔴Vulnerability Details

3
GHSA
GHSA-j545-cjf3-8m8v: When using certain blank characters in a URL, they where incorrectly rendered as spaces instead of an encoded URL↗2022-05-24
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OSV
firefox vulnerabilities↗2020-06-04
▶
OSV
CVE-2020-12409: When using certain blank characters in a URL, they where incorrectly rendered as spaces instead of an encoded URL↗2020-06-02
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📋Vendor Advisories

3
Ubuntu
Firefox vulnerabilities↗2020-06-04
▶
Debian
CVE-2020-12409: firefox - When using certain blank characters in a URL, they where incorrectly rendered as...↗2020
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Mozilla
Mozilla Foundation Security Advisory 2020-20: CVE-2020-12409↗
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