CVE-2018-5131
What it is
Under certain circumstances the "fetch()" API can return transient local copies of resources that were sent with a "no-store" or "no-cache" cache header instead of downloading a copy from the network as it should. This can result in previously stored, locally cached data of a website being accessible to users if they share a common profile while browsing. This vulnerability affects Firefox ESR < 52.7 and Firefox < 59.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure.
- Exploit odds
- 2.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 2.2% in the next 30 days (EPSS).
- Severity: 5.9 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 2.2% · EPSS, next 30 days
- Weakness
- CWE-200 · Information exposure
- Record status
- Modified
Affected
- Debian Linux 7.0
- Debian Linux 8.0
- Debian Linux 9.0
- Mozilla Firefox < 59.0
- Mozilla Firefox < 52.7.0
- Redhat Enterprise Linux Desktop 6.0
- Redhat Enterprise Linux Desktop 7.0
- Redhat Enterprise Linux Server 6.0
Attack profile CVSS 3.0 · 5.9
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Raw vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2018-5131.md and follow it. Check whether this project is affected by CVE-2018-5131. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://www.mozilla.org/security/advisories/mfsa2018-06/
- https://www.mozilla.org/security/advisories/mfsa2018-07/
- https://www.mozilla.org/security/advisories/mfsa2018-06/
- https://www.mozilla.org/security/advisories/mfsa2018-07/
References
- http://www.securityfocus.com/bid/103388
- http://www.securitytracker.com/id/1040514
- https://access.redhat.com/errata/RHSA-2018:0526
- https://access.redhat.com/errata/RHSA-2018:0527
- https://bugzilla.mozilla.org/show_bug.cgi?id=1440775
- https://lists.debian.org/debian-lts-announce/2018/03/msg00010.html
- https://security.gentoo.org/glsa/201810-01
- https://usn.ubuntu.com/3596-1/
- https://www.debian.org/security/2018/dsa-4139
- https://www.mozilla.org/security/advisories/mfsa2018-06/
- https://www.mozilla.org/security/advisories/mfsa2018-07/
- http://www.securityfocus.com/bid/103388
- http://www.securitytracker.com/id/1040514
- https://access.redhat.com/errata/RHSA-2018:0526
- https://access.redhat.com/errata/RHSA-2018:0527
- https://bugzilla.mozilla.org/show_bug.cgi?id=1440775
- https://lists.debian.org/debian-lts-announce/2018/03/msg00010.html
- https://security.gentoo.org/glsa/201810-01
- https://usn.ubuntu.com/3596-1/
- https://www.debian.org/security/2018/dsa-4139
- https://www.mozilla.org/security/advisories/mfsa2018-06/
- https://www.mozilla.org/security/advisories/mfsa2018-07/