CVE-2019-11730: debian debian_linux
Vulnerability summary
CVE-2019-11730 is a medium (CVSS 6.5) vulnerability in debian debian_linux. EPSS estimates a 20.27% chance of exploitation in the next 30 days, higher than 97.4% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 34 · Related 20Timeline
- 23-07-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
A vulnerability exists where if a user opens a locally saved HTML file, this file can use file: URIs to access other files in the same directory or sub-directories if the names are known or guessed. The Fetch API can then be used to read the contents of any files stored in these directories and they may uploaded to a server. It was demonstrated that in combination with a popular Android messaging app, if a malicious HTML attachment is sent to a user and they opened that attachment in Firefox, due to that app's predictable pattern for locally-saved file names, it is possible to read attachments the victim received from other correspondents. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.
CVSS metrics
5 scores · 3 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS trend
Probability
20.27%
Chance of exploitation in the next 30 days
Percentile
97%
Versus all other CVEs
30-day change
0.00 pp
From 20.27% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu4 products
- firefox< 68.0+build3-0ubuntu0.16.04.1 | < 68.0+build3-0ubuntu0.18.04.1
- mozjs38All versions (No fix recorded)
- mozjs52All versions (No fix recorded)
- thunderbird< 1:60.8.0+build1-0ubuntu0.16.04.2 | < 1:60.8.0+build1-0ubuntu0.18.04.1
Debian3 products
- firefox-esr< 60.8.0esr-1
- thunderbird< 1:60.8.0-1
- debian_linuxEOL8.0
Mozilla3 products
- firefox≥ unspecified, < 68 | < 68.0
- firefox_esr≥ unspecified, < 60.8 | < 60.8
- thunderbird≥ unspecified, < 60.8 | < 60.8
Opensuse1 product
- leapEOL15.0 | 15.1
Suse1 product
5 vendors · 12 products
References
20 links- lists.opensuse.org/opensuse-security-announce/2019-07/msg00055.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00058.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
lists.debian.org/debian-lts-announce/2019/08/msg00001.htmlMailing ListX Refsource MLISTThird Party Advisory- lists.debian.org/debian-lts-announce/2019/08/msg00002.htmlMailing ListX Refsource MLISTThird Party Advisory
Show all 20 references
- lists.opensuse.org/opensuse-security-announce/2019-08/msg00073.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory