CVE-2018-12365: A compromised IPC child process can escape the content sandbox and list the names of arbitrary files on the file system without user consent
Noroxi assessment
Priority: Monitor (action score 27/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 3.1% (FIRST EPSS); higher than 87.8% of all records.
- Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
- Fixed version: firefox-esr (Debian:12) 52.9.0esr-1; thunderbird (Debian:12) 1:52.9.0-1; firefox-esr (Debian:8) 52.9.0esr-1~deb8u1.
Low priority for now. Upgrade to firefox-esr (Debian:12) 52.9.0esr-1; thunderbird (Debian:12) 1:52.9.0-1; firefox-esr (Debian:8) 52.9.0esr-1~deb8u1 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
A compromised IPC child process can escape the content sandbox and list the names of arbitrary files on the file system without user consent or interaction. This could result in exposure of private local files. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.
- Published
- Oct 18, 2018
- Updated
- Jun 16, 2026
- EPSS
- 3.1% · 87th percentile
- CWE
- CWE-200
Report tools
Action score
27
Monitor
Low priority for now.
- CVSS
- 26 / 40 · 6.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 3.1%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| redhat | enterprise linux desktop | cpe:2.3:o:redhat:enterprise_linux_desktop |
| redhat | enterprise linux server | cpe:2.3:o:redhat:enterprise_linux_server |
| redhat | enterprise linux server aus | cpe:2.3:o:redhat:enterprise_linux_server_aus |
| redhat | enterprise linux server eus | cpe:2.3:o:redhat:enterprise_linux_server_eus |
| redhat | enterprise linux server tus | cpe:2.3:o:redhat:enterprise_linux_server_tus |
| redhat | enterprise linux workstation | cpe:2.3:o:redhat:enterprise_linux_workstation |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
| canonical | ubuntu linux | cpe:2.3:o:canonical:ubuntu_linux |
| mozilla | firefox | cpe:2.3:a:mozilla:firefox |
| mozilla | firefox esr | cpe:2.3:a:mozilla:firefox_esr |
| mozilla | thunderbird | cpe:2.3:a:mozilla:thunderbird |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- canonical ubuntu linux14.04
- canonical ubuntu linux16.04
- canonical ubuntu linux17.10
- canonical ubuntu linux18.04
- debian debian linux8.0
- debian debian linux9.0
- mozilla firefoxbefore 61.0
- mozilla firefox53.0 and later · before 60.1.0
- mozilla firefox esrbefore 52.9
- mozilla thunderbird52.9.1 and later · before 60.0
- mozilla thunderbirdbefore 52.9
- redhat enterprise linux desktop6.0
- redhat enterprise linux desktop7.0
- redhat enterprise linux server6.0
- redhat enterprise linux server7.0
- redhat enterprise linux server aus7.6
- redhat enterprise linux server eus7.5
- redhat enterprise linux server eus7.6
- redhat enterprise linux server tus7.6
- redhat enterprise linux workstation6.0
Versions reported by the vendor
Affected version ranges reported by the assigning authority (mozilla). Independent of NVD's CPE analysis and usually ahead of it.
Mozilla Firefox
- unspecified and later · before 61affected
Mozilla Firefox ESR
- unspecified and later · before 60.1affected
- unspecified and later · before 52.9affected
Mozilla Thunderbird
- unspecified and later · before 60affected
- unspecified and later · before 52.9affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | firefox-esr | before 52.9.0esr-1 | 52.9.0esr-1 |
| Debian:12 | thunderbird | before 1:52.9.0-1 | 1:52.9.0-1 |
| Debian:8 | firefox-esr | before 52.9.0esr-1~deb8u1 | 52.9.0esr-1~deb8u1 |
| Debian:8 | thunderbird | before 1:52.9.1-1~deb8u1 | 1:52.9.1-1~deb8u1 |
| Debian:9 | firefox-esr | before 52.9.0esr-1~deb9u1 | 52.9.0esr-1~deb9u1 |
| Debian:9 | thunderbird | before 1:52.9.1-1~deb9u1 | 1:52.9.1-1~deb9u1 |
| Red Hat:enterprise_linux:6::client | firefox | before 0:60.1.0-5.el6 | 0:60.1.0-5.el6 |
| Red Hat:enterprise_linux:6::client | firefox-debuginfo | before 0:60.1.0-5.el6 | 0:60.1.0-5.el6 |
| Red Hat:enterprise_linux:6::client | thunderbird | before 0:52.9.1-1.el6 | 0:52.9.1-1.el6 |
| Red Hat:enterprise_linux:6::client | thunderbird-debuginfo | before 0:52.9.1-1.el6 | 0:52.9.1-1.el6 |
| Red Hat:enterprise_linux:7::client | firefox | before 0:60.1.0-4.el7_5 | 0:60.1.0-4.el7_5 |
| Red Hat:enterprise_linux:7::client | firefox-debuginfo | before 0:60.1.0-4.el7_5 | 0:60.1.0-4.el7_5 |
| Red Hat:enterprise_linux:7::client | thunderbird | before 0:52.9.1-1.el7_5 | 0:52.9.1-1.el7_5 |
| Red Hat:enterprise_linux:7::client | thunderbird-debuginfo | before 0:52.9.1-1.el7_5 | 0:52.9.1-1.el7_5 |
| SUSE:Linux Enterprise Module for Desktop Applications 15 | MozillaFirefox | before 52.9.0esr-3.7.12 | 52.9.0esr-3.7.12 |
| SUSE:Linux Enterprise Software Development Kit 11 SP4 | MozillaFirefox | before 52.9.0esr-72.38.6 | 52.9.0esr-72.38.6 |
| SUSE:Linux Enterprise Workstation Extension 15 | MozillaThunderbird | before 52.9.1-3.7.1 | 52.9.1-3.7.1 |
| SUSE:Linux Enterprise Workstation Extension 15 | MozillaThunderbird | before 60.2.1-3.13.1 | 60.2.1-3.13.1 |
| SUSE:OpenStack Cloud 7 | MozillaFirefox | before 52.9.0esr-109.38.2 | 52.9.0esr-109.38.2 |
| SUSE:Package Hub 12 | MozillaThunderbird | before 60.3.0-74.2 | 60.3.0-74.2 |
| SUSE:Package Hub 15 | seamonkey | before 2.49.4-bp150.3.3.1 | 2.49.4-bp150.3.3.1 |
Same product
redhat: all recordsOther highest-scoring records for the same primary product.
- CVE-2017-5375JIT code allocation can allow for a bypass of ASLR and DEP protections leading to potential memory corruption attacks.49Plan
- CVE-2018-14649It was found that ceph-isci-cli package as shipped by Red Hat Ceph Storage 2 and 3 is using python-werkzeug in debug shell mode.43Plan
- CVE-2016-7050SerializableProvider in RESTEasy in Red Hat Enterprise Linux Desktop 7, Red Hat Enterprise Linux HPC Node 7, Red Hat Enterprise Linux Server41Plan
Published before and after this one in the same product
- ← EarlierCVE-2018-12363Oct 18, 2018 · A use-after-free vulnerability can occur when script uses mutation events to move DOM nodes between documents, resulting in the old document36Monitor
- ← EarlierCVE-2018-12364Oct 18, 2018 · NPAPI plugins, such as Adobe Flash, can send non-simple cross-origin requests, bypassing CORS by making a same-origin POST that does a 307 r36Monitor
- Later →CVE-2018-12366Oct 18, 2018 · An invalid grid size during QCMS (color profile) transformations can result in the out-of-bounds read interpreted as a float value.27Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:firefox-esr | 52.9.0esr-1 · Debian:12 | Package registry (OSV) |
| debian:thunderbird | 1:52.9.0-1 · Debian:12 | Package registry (OSV) |
| red hat:firefox | 0:60.1.0-5.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:firefox-debuginfo | 0:60.1.0-5.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:thunderbird | 0:52.9.1-1.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:thunderbird-debuginfo | 0:52.9.1-1.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| suse:MozillaFirefox | 52.9.0esr-3.7.12 · SUSE:Linux Enterprise Module for Desktop Applications 15 | Package registry (OSV) |
| suse:MozillaThunderbird | 52.9.1-3.7.1 · SUSE:Linux Enterprise Workstation Extension 15 | Package registry (OSV) |
| suse:seamonkey | 2.49.4-bp150.3.3.1 · SUSE:Package Hub 15 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- A user must open a link or visit a page.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- none
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-200 · Exposure of Sensitive Information to an Unauthorized ActorCVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
nvd-primary
Root cause
The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.
The bug in code
The whole CWE-200 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
{
"permissions": ["tabs", "<all_urls>"],
"background": { "service_worker": "analytics.js" }
}Fixed
{
"permissions": ["activeTab"],
"host_permissions": ["https://yildiz.example/*"]
}Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- ExcavationCAPEC-116likelihood: High · Medium
- Subverting Environment Variable ValuesCAPEC-13likelihood: High · Very High
- FootprintingCAPEC-169likelihood: High · Very Low
- Exploiting Trust in ClientCAPEC-22likelihood: High · High
- FingerprintingCAPEC-224likelihood: High · Very Low
- ICMP Echo Request PingCAPEC-285likelihood: Medium · Low
- TCP SYN ScanCAPEC-287Low
- Enumerate Mail Exchange (MX) RecordsCAPEC-290Low
ATT&CK techniques
- System Service DiscoveryT1007
- System Network Configuration DiscoveryT1016
- Remote System DiscoveryT1018
- System Owner/User DiscoveryT1033
- Masquerading: Match Legitimate Name or LocationT1036.005
- Network Service ScanningT1046
- System Network Connections DiscoveryT1049
- Process DiscoveryT1057
- Permission Groups DiscoveryT1069
- System Information DiscoveryT1082
- File and Directory DiscoveryT1083
- Account DiscoveryT1087
- Multi-Factor Authentication InterceptionT1111
- Peripheral Device DiscoveryT1120
- System Time DiscoveryT1124
- Access Token Manipulation:Token Impersonation/TheftT1134.001
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (19 more)Show less
- www.securitytracker.com/id/1041193
- access.redhat.com/errata/RHSA-2018:2112
- access.redhat.com/errata/RHSA-2018:2113
- access.redhat.com/errata/RHSA-2018:2251
- access.redhat.com/errata/RHSA-2018:2252
- bugzilla.mozilla.org/show_bug.cgi?id=1459206
- lists.debian.org/debian-lts-announce/2018/06/msg00014.html
- lists.debian.org/debian-lts-announce/2018/07/msg00013.html
- security.gentoo.org/glsa/201810-01
- security.gentoo.org/glsa/201811-13
- usn.ubuntu.com/3705-1/
- usn.ubuntu.com/3714-1/
- www.debian.org/security/2018/dsa-4235
- www.debian.org/security/2018/dsa-4244
- www.mozilla.org/security/advisories/mfsa2018-15/
- www.mozilla.org/security/advisories/mfsa2018-16/
- www.mozilla.org/security/advisories/mfsa2018-17/
- www.mozilla.org/security/advisories/mfsa2018-18/
- www.mozilla.org/security/advisories/mfsa2018-19/
Vendor advisories and official records. Exploit/PoC links are deliberately left out.