CVE-2016-3705: canonical ubuntu_linux Improper Input Validation
Vulnerability summary
CVE-2016-3705 is a high (CVSS 7.5) Improper Input Validation vulnerability in canonical ubuntu_linux. EPSS estimates a 5.10% chance of exploitation in the next 30 days, higher than 92.2% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 9 · Related 5Timeline
- 17-05-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The (1) xmlParserEntityCheck and (2) xmlParseAttValueComplex functions in parser.c in libxml2 2.9.3 do not properly keep track of the recursion depth, which allows context-dependent attackers to cause a denial of service (stack consumption and application crash) via a crafted XML document containing a large number of nested entity references.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
5.10%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
0.00 pp
From 5.10% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- libxml2< 2.9.3+dfsg1-1.1
- debian_linuxEOL8.0
Hp2 products
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 15.10 | 16.04
Opensuse1 product
- leapEOL42.1
Ubuntu1 product
- libxml2< 2.9.1+dfsg1-3ubuntu4.8 | < 2.9.3+dfsg1-1ubuntu0.1
Xmlsoft1 product
- libxml22.9.3
6 vendors · 8 products
References
20 links- www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.htmlX Refsource CONFIRM
- kc.mcafee.com/corporate/index?page=content&id=SB10170X Refsource CONFIRM
- www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.htmlX Refsource CONFIRM
Show all 20 references
- www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.htmlX Refsource CONFIRM
- www.tenable.com/security/tns-2016-18X Refsource CONFIRM
- bugzilla.gnome.org/show_bug.cgi?id=765207X Refsource CONFIRM