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CVE-2017-5378
Hashed codes of JavaScript objects are shared between pages. This allows for pointer leaks because an object's address can be discovered…
High7.5EPSS 3.3%
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
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.
Timeline
ID reserved
By mozilla
- 17 months later
· 17 months later
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 3.3% · top 11% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- Pointer and frame data leakage of Javascript objects
- CWE-200 (opens in a new tab)All about CWE-200 and its CVEs
Affected products
- affected unspecified – < 45.7
- affected unspecified – < 45.7
- affected unspecified – < 51
References (13)
- https://www.mozilla.org/security/advisories/mfsa2017-03/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.mozilla.org/security/advisories/mfsa2017-02/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=1312001 (opens in a new tab)x_refsource_CONFIRMx_transferred
- GLSA-201702-22 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=1330769 (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-3832 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- GLSA-201702-13 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- DSA-3771 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 1037693 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://www.mozilla.org/security/advisories/mfsa2017-01/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2017:0190 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2017:0238 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 95769 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2017-5378)Record last updated .