Public exploit available
Public proof-of-concept or exploit code exists (ExploitDB / Metasploit / Nuclei).
CVE-2017-5447 — Use After Free in Mozilla Firefox
Severity
9.1CRITICALNVD
OSV9.8
EPSS
17.1%
top 4.98%
CISA KEV
Not in KEV
Exploit
PoC available
Public exploit / PoC exists
Affected products
Timeline
PublishedJun 11
Latest updateMay 14
Description
An out-of-bounds read during the processing of glyph widths during text layout. This results in a potentially exploitable crash and could allow an attacker to read otherwise inaccessible memory. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HExploitability: 3.9 | Impact: 5.2
Affected Packages9 packages
Also affects: Debian Linux 9.0, Enterprise Linux 6.0, 7.0, 7.3, 7.4, 7.5
🔴Vulnerability Details
5GHSA▶
GHSA-qh42-8mfg-rhvw: An out-of-bounds read during the processing of glyph widths during text layout↗2022-05-14
OSV▶
CVE-2017-5447: An out-of-bounds read during the processing of glyph widths during text layout↗2018-06-11
CVEList▶
CVE-2017-5447: An out-of-bounds read during the processing of glyph widths during text layout↗2018-06-11
💥Exploits & PoCs
1📋Vendor Advisories
4Debian▶
CVE-2017-5447: firefox - An out-of-bounds read during the processing of glyph widths during text layout. ...↗2017
💬Community
1Bugzilla▶
CVE-2017-5447 Mozilla: Out-of-bounds read during glyph processing (MFSA 2017-11, MFSA 2017-12)↗2017-04-19