CVE-2017-7756 — Use After Free in Mozilla Firefox

CWE-416 — Use After Free10 documents7 sources
Severity
9.8CRITICALNVD
EPSS
1.9%
top 16.85%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
6
Mozilla FirefoxMozilla Firefox ESRMozilla Thunderbird+3 more
Timeline
PublishedJun 11
Latest updateMay 14

Description

A use-after-free and use-after-scope vulnerability when logging errors from headers for XML HTTP Requests (XHR). This could result in a potentially exploitable crash. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages9 packages

▶debiandebian/firefox< firefox 54.0-1 (sid)
▶CVEListV5mozilla/firefoxunspecified — 54
▶NVDmozilla/firefox< 52.2.0+1
▶debiandebian/firefox-esr< firefox 54.0-1 (sid)
▶CVEListV5mozilla/firefox_esrunspecified — 52.2

Also affects: Debian Linux 8.0, 9.0

🔴Vulnerability Details

4
GHSA
GHSA-3x73-p8v6-p37w: A use-after-free and use-after-scope vulnerability when logging errors from headers for XML HTTP Requests (XHR)↗2022-05-14
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OSV
CVE-2017-7756: A use-after-free and use-after-scope vulnerability when logging errors from headers for XML HTTP Requests (XHR)↗2018-06-11
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OSV
thunderbird vulnerabilities↗2017-07-05
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OSV
firefox vulnerabilities↗2017-06-15
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📋Vendor Advisories

4
Ubuntu
Thunderbird vulnerabilities↗2017-07-05
▶
Ubuntu
Firefox vulnerabilities↗2017-06-15
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Red Hat
Mozilla: Use-after-free and use-after-scope logging XHR header errors (MFSA 2017-16)↗2017-06-14
▶
Debian
CVE-2017-7756: firefox - A use-after-free and use-after-scope vulnerability when logging errors from head...↗2017
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💬Community

1
Bugzilla
CVE-2017-7756 Mozilla: Use-after-free and use-after-scope logging XHR header errors (MFSA 2017-16)↗2017-06-14
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