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CVE-2018-5131

N/A
Published: June 11, 2018 at 09:00 PM UTC
Updated: June 17, 2026 at 01:59 AM UTC
9 products affected across 4 vendorsDebian LinuxUbuntu LinuxFirefox

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Severity
N/A
Exploit prediction
EPSS 2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ubuntu Linux· Canonicalrubygems
95%
14.0416.0417.10
Debian Linux· Debiandrupal
95%
7.08.09.0
Firefox· Mozilla
95%
v < 52.7.0v < 59v < 59.0
Affected range stops below 59, so it looks safe — our inference, not a vendor statement
Affected range stops below 59.0, so it looks safe — our inference, not a vendor statement
Enterprise Linux Desktop· Red Hatrubygems
95%
6.07.0
Enterprise Linux Server· Red Hatrubygems
95%
6.07.0
Enterprise Linux Server Aus· Red Hatrubygems
95%
7.4
Enterprise Linux Server Eus· Red Hatrubygems
95%
7.47.5
Enterprise Linux Workstation· Red Hatrubygems
95%
6.07.0
Firefox ESR· Mozilla
60%
v < 52.7
Affected range stops below 52.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 52.7.0, so it looks safe — our inference, not a vendor statement

References (11)

VDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/103388
VDB Entryx_refsource_SECTRACKThird Party Advisory
Source: [email protected]
http://www.securitytracker.com/id/1040514
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2018:0526
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2018:0527
x_refsource_CONFIRMIssue TrackingPermissions RequiredThird Party Advisory
Source: [email protected]
https://bugzilla.mozilla.org/show_bug.cgi?id=1440775
Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2018/03/msg00010.html
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/201810-01
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/3596-1/

CVSS

4.3MEDIUM[email protected]
Confidentiality
PARTIAL
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-200

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