Home/CVE/`EncryptingOutputStream` was susceptible to exposing uninitialized data. This issue could only be abused in order to wr
CVE

CVE-2023-6865

`EncryptingOutputStream` was susceptible to exposing uninitialized data. This issue could only be abused in order to wr

EncryptingOutputStream was susceptible to exposing uninitialized data. This issue could only be abused in order to write data to a local disk which may have implications for private browsing mode. This vulnerability affects Firefox ESR < 115.6 and Firefox < 121.

MEDIUM · CVSS 6.5 EPSS 0.00414
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules1 YARA rules0
▤

Affected Products & Versions

3
mozilla firefox< 121.0
mozilla firefox esr< 115.6
debian linuxall versions
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighSQLite Firefox Profile Data DB Access
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · security@mozilla.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD19 Dec 2023 · 02:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
⚑

Vendor Advisories

16
suse-csafopenSUSE-SU-2024:14572-1
suse-csafopenSUSE-SU-2024:13531-1
usnUSN-6562-1
suse-csafSUSE-SU-2023:4928-1
suse-csafSUSE-SU-2023:4929-1
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.mozilla.org/show_bug.cgi?id=1864123Issue TrackingPermissions Required
https://lists.debian.org/debian-lts-announce/2023/12/msg00020.htmlMailing ListThird Party Advisory
https://security.gentoo.org/glsa/202401-10Third Party Advisory
https://www.debian.org/security/2023/dsa-5581Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2023-54/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-56/Vendor Advisory
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