Improper input validation in Xmlsoft Libxml2
CVE-2016-4449
XML external entity (XXE) vulnerability in the xmlStringLenDecodeEntities function in parser.c in libxml2 before 2.9.4, when not in validating mode, allows context-dependent attackers to read arbitrary files or cause a denial of service (resource consumption) via unspecified vectors.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.017 (75.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 75.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000
Affected products
- Xmlsoft Libxml2
- Canonical Ubuntu Linux — versions 12.04, 14.04, 15.10
- Debian Linux — versions 8.0
Weakness classification (CWE)
References
- www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- support.cybozu.com/ja-jp/article/9735
- kc.mcafee.com/corporate/index
- www.slackware.com/security/viewer.php (vendor-advisory)
- www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- jvn.jp/en/jp/JVN17535578/index.html (third-party-advisory)
- access.redhat.com/errata/RHSA-2016:1292 (vendor-advisory)
- www.openwall.com/lists/oss-security/2016/05/25/2 (mailing-list)
- www.debian.org/security/2016/dsa-3593 (vendor-advisory)
- lists.apple.com/archives/security-announce/2016/Jul/msg00003.html (vendor-advisory)
Frequently asked questions
- What is CVE-2016-4449?
- CVE-2016-4449 is a high-severity vulnerability in Xmlsoft Libxml2, classified under Improper Input Validation. CVSS score: 7.1/10. Published 2016-06-09.
- How severe is CVE-2016-4449?
- High severity. CVSS v3 base score is 7.1 out of 10.