CVE-2015-8806 json
Denial of service or RCE from libxml2 and libxslt
published 10y ago modified 4mo ago also GHSA-7hp2-xwpj-95jq , EUVD-2018-0444
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 5.0%
- EPSS 5.0% chance of exploitation in 30 days, percentile 92%
- public exploits
- 0
- none known
Summary
dict.c in libxml2 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via an unexpected character immediately after the "<!DOCTYPE html" substring in a crafted HTML document.
Patch / fix
- rubygems nokogiri 1.6.8
- xmlsoft libxml2 2.9.4
- libxml2 Debian 14, Debian 13, Debian 12 2.9.3+dfsg1-1.1
debian advisories DEBIAN-CVE-2015-8806
- libxml2 Ubuntu 14.04 LTS 2.9.1+dfsg1-3ubuntu4.8
- libxml2 Ubuntu 16.04 LTS 2.9.3+dfsg1-1ubuntu0.1
ubuntu advisories UBUNTU-CVE-2015-8806
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- libxml2 SLES for SAP 11 SP4, SLES 11 SP4, SLES 11 SP3-TERADATA +6 more 2.7.6-0.44.1
- libxml2-python SLES for SAP 11 SP4, SLES 11 SP4, SLES 11 SP3-TERADATA +5 more 2.7.6-0.44.4
- libxml2 SLES for SAP 12 SP1, SLES for SAP 12, SLES 12 SP1 +5 more 2.9.1-24.1
- python-libxml2 SLES for SAP 12 SP1, SLES for SAP 12, SLES 12 SP1 +3 more 2.9.1-24.1
suse advisories SUSE-SU-2016:1604-1SUSE-SU-2016:1538-1
Is CVE-2015-8806 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerVendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2015-8806 updated cvss 4.3
libxml2: heap-buffer overread in dict.c
-
Red Hat Enterprise Linux 5 libxml2 Red Hat Enterprise Linux 6 libxml2, libxml2-python Red Hat Enterprise Linux 7 libxml2, libxml2-pythonnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
4.96% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| rubygems | nokogiri | >=1.6.0, <1.6.8 |
1.6.8 |
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
debian.org
/security/2016/dsa-3593
vendor-advisory, web, third-party-advisory
-
ubuntu.com
/usn/USN-2994-1
vendor-advisory, web, third-party-advisory
-
security.gentoo.org
/glsa/201701-37
vendor-advisory, web, third-party-advisory
-
bugzilla.gnome.org
/show_bug.cgi?id=749115
web, issue-tracking, vendor-advisory
-
oracle.com
/technetwork/topics/security/bulletinjul2016-3090568.html
web, third-party-advisory
-
openwall.com
/lists/oss-security/2016/02/03/5
mailing-list, web, third-party-advisory
-
securityfocus.com
/bid/82071
vdb-entry, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2015-8806
advisory
-
github.com
/sparklemotion/nokogiri/issues/1473
web
-
github.com
/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2015-8806.yml
web
-
github.com
/sparklemotion/nokogiri
package
-
web.archive.org
/web/20160928171015/http://www.securityfocus.com/bid/82071
web
Sources
- CVE List CVE-2015-8806
- GitHub Advisory GHSA-7hp2-xwpj-95jq
- NVD CVE-2015-8806
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.