Home/CVE/An integer overflow during the parsing of XML using the Expat library. This vulnerability affects Firefox < 50.
CVE

CVE-2016-9063

An integer overflow during the parsing of XML using the Expat library. This vulnerability affects Firefox < 50.

An integer overflow during the parsing of XML using the Expat library. This vulnerability affects Firefox < 50.

CRITICAL · CVSS 9.8 EPSS 0.0271
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules9 YARA rules0
⬡

Weakness Classification

CWE-190Integer Overflow or Wraparound
▤

Affected Products & Versions

7
mozilla firefox< 50
debian linuxall versions
python>= 2.7.0 and < 2.7.15
python>= 3.3.0 and < 3.3.7
python>= 3.4.0 and < 3.4.7
python>= 3.5.0 and < 3.5.4
python>= 3.6.0 and < 3.6.2
◈

Sigma Hunt Rules

9
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
producthighPython Reverse Shell Execution Via PTY And Socket Modules
producthighInline Python Execution - Spawn Shell Via OS System Library
producthighPython One-Liners with Base64 Decoding - Linux
producthighPython Function Execution Security Warning Disabled In Excel
producthighPython One-Liners with Base64 Decoding
▣

Scoring & Timeline

9.8
CRITICAL · 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 NVD11 Jun 2018 · 09:29 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

11
suse-csafopenSUSE-SU-2024:14572-1
suse-csafopenSUSE-SU-2024:10071-1
suse-csafopenSUSE-SU-2024:10748-1
suse-csafSUSE-SU-2020:0497-1
suse-csafSUSE-SU-2019:2872-1
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.securityfocus.com/bid/94337Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1037298Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039427Third Party AdvisoryVDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1274777Issue TrackingVendor Advisory
https://www.debian.org/security/2017/dsa-3898Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2016-89/Vendor Advisory
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