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CVE

CVE-2016-4472

The overflow protection in Expat is removed by compilers with certain optimization settings, which allows remote attacke

The overflow protection in Expat is removed by compilers with certain optimization settings, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via crafted XML data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1283 and CVE-2015-2716.

HIGH · CVSS 8.1 EPSS 0.02271
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules8 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
▤

Affected Products & Versions

8
libexpat project libexpat<= 2.1.1
canonical ubuntu linuxall versions
mcafee policy auditor< 6.5.1
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

8
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.
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
producthighPython Spawning Pretty TTY on Windows
▣

Scoring & Timeline

8.1
HIGH · CVSS v3.1 · secalert@redhat.com
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 NVD30 Jun 2016 · 05:59 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

5
usnUSN-7199-1
suse-csafopenSUSE-SU-2024:10077-1
usnUSN-5455-1
suse-csafSUSE-SU-2020:0497-1
usnUSN-3013-1
🔗

References & Sources

7
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/91528Third Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-3013-1Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1344251Issue TrackingPatchThird Party Advisory
https://kc.mcafee.com/corporate/index?page=content&id=SB10365Third Party Advisory
https://security.gentoo.org/glsa/201701-21Third Party Advisory
https://sourceforge.net/p/expat/code_git/ci/f0bec73b018caa07d3e75ec8dd967f3785d71bdePatchThird Party Advisory
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