Home/CVE/When encoding data from an inputStream in xpcom the size of the input being encoded was not correctly calculated potenti
CVE

CVE-2023-25732

When encoding data from an inputStream in xpcom the size of the input being encoded was not correctly calculated potenti

When encoding data from an inputStream in xpcom the size of the input being encoded was not correctly calculated potentially leading to an out of bounds memory write. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.

HIGH · CVSS 8.8 EPSS 0.00153
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-787Out-of-bounds Write
CWE-787Out-of-bounds Write
▤

Affected Products & Versions

3
mozilla firefox< 110.0
mozilla firefox esr< 102.8
mozilla thunderbird< 102.8
◈

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

8.8
HIGH · 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 NVD02 Jun 2023 · 05:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

27
suse-csafopenSUSE-SU-2024:14572-1
suse-csafopenSUSE-SU-2024:12702-1
suse-csafopenSUSE-SU-2024:12713-1
suse-csafopenSUSE-SU-2024:12753-1
usnUSN-5943-1
🔗

References & Sources

4
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=1804564Issue TrackingPermissions Required
https://www.mozilla.org/security/advisories/mfsa2023-05/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-06/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-07/Vendor Advisory
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