Information disclosure - CVE-2017-5378
Published: June 11, 2018 / Updated: August 4, 2020
Vulnerability identifier: #VU33564
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-5378
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
Hashed codes of JavaScript objects are shared between pages. This allows for pointer leaks because an object's address can be discovered through hash codes, and also allows for data leakage of an object's content using these hash codes. This vulnerability affects Thunderbird < 45.7, Firefox ESR < 45.7, and Firefox < 51.
Affected software
Arch Linux
Gentoo Linux
SUSE Linux
Slackware Linux
firefox-esr (Alpine package)
Gentoo Linux
SUSE Linux
Slackware Linux
firefox-esr (Alpine package)
How to mitigate CVE-2017-5378
Install update from vendor's website.
firefox-esr (Alpine package) - update to 45.7.0-r0
External References
- http://rhn.redhat.com/errata/RHSA-2017-0190.html
- http://rhn.redhat.com/errata/RHSA-2017-0238.html
- http://www.securityfocus.com/bid/95769
- http://www.securitytracker.com/id/1037693
- https://bugzilla.mozilla.org/show_bug.cgi?id=1312001
- https://bugzilla.mozilla.org/show_bug.cgi?id=1330769
- https://security.gentoo.org/glsa/201702-13
- https://security.gentoo.org/glsa/201702-22
- https://www.debian.org/security/2017/dsa-3771
- https://www.debian.org/security/2017/dsa-3832
- https://www.mozilla.org/security/advisories/mfsa2017-01/
- https://www.mozilla.org/security/advisories/mfsa2017-02/
- https://www.mozilla.org/security/advisories/mfsa2017-03/