The xmlreader in libxml allows remote attackers to cause a denial of service (memory…
Priority LOW 32CWE-399Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- Partial Red Hat: 16 fixed, 1 without a fix
Attack profile from CVSS 2.0 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-399 and the CVSS impact.
Summary
The xmlreader in libxml allows remote attackers to cause a denial of service (memory consumption) via crafted XML data, related to an XML Entity Expansion (XEE) attack.
Why it matters now
EPSS 0.06289 93rd percentileScored 2026-11-07
Fix Partial nokogiri (RubyGems): 1.6.6.4Red Hat: 2 advisoriesRed Hat: 16 fixed, 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | nokogiri (RubyGems) | 1.6.6.0 to before 1.6.6.4 | 1.6.6.4 | Patch available | GHSA-q7wx-62r7-j2x7 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- nokogiri (RubyGems) Vendor— Affected 1.6.6.0 to before 1.6.6.4 Fixed in 1.6.6.4 Patch available GHSA-q7wx-62r7-j2x7
CPE configurations NVD · 17
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* | 12.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | 14.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:* | 15.04 | Vulnerable | Canonical |
| cpe:2.3:o:redhat:enterprise_linux:*:*:*:*:*:*:*:* | up to 5.0 | Vulnerable | Red Hat |
| cpe:2.3:a:xmlsoft:libxml:*:*:*:*:*:*:*:* | all versions | Vulnerable | xmlsoft |
| cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:* | 11.3 | Vulnerable | Oracle |
| cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* | up to 9.2.1 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* | up to 10.11.3 | Vulnerable | Apple |
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* Versions 12.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:* Versions 15.04 Vulnerable ·Canonical
- cpe:2.3:o:redhat:enterprise_linux:*:*:*:*:*:*:*:* Versions up to 5.0 Vulnerable ·Red Hat
- cpe:2.3:a:xmlsoft:libxml:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·xmlsoft
- cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:* Versions 11.3 Vulnerable ·Oracle
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions up to 9.2.1 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions up to 10.11.3 Vulnerable ·Apple
Show 7 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* | up to 9.1 | Vulnerable | Apple |
| cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* | up to 2.1 | Vulnerable | Apple |
| cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:* | 7 | Vulnerable | Oracle |
| cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* | 13.1 | Vulnerable | openSUSE |
| cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* | 13.2 | Vulnerable | openSUSE |
| cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:* | 22 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* | 23 | Vulnerable | Fedoraproject |
- cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions up to 9.1 Vulnerable ·Apple
- cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions up to 2.1 Vulnerable ·Apple
- cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:* Versions 7 Vulnerable ·Oracle
- cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* Versions 13.1 Vulnerable ·openSUSE
- cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* Versions 13.2 Vulnerable ·openSUSE
- cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:* Versions 22 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* Versions 23 Vulnerable ·Fedoraproject
Remediation
- Fix · GHSA-q7wx-62r7-j2x7 nokogiri (RubyGems) Fixed in 1.6.6.4 Advisory →
Red Hat 2 advisories
- RHSA-2015:2550 Released 2015-12-07 · Red Hat rating Moderatelibxml2 security update
- Red Hat Enterprise Linux Client (v. 7) libxml2-2.9.1-6.el7_2.2, libxml2-python-2.9.1-6.el7_2.2
- Red Hat Enterprise Linux Client Optional (v. 7) libxml2-devel-2.9.1-6.el7_2.2, libxml2-static-2.9.1-6.el7_2.2
- Red Hat Enterprise Linux ComputeNode (v. 7) libxml2-2.9.1-6.el7_2.2, libxml2-python-2.9.1-6.el7_2.2
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) libxml2-devel-2.9.1-6.el7_2.2, libxml2-static-2.9.1-6.el7_2.2
- Red Hat Enterprise Linux Server (v. 7) libxml2-2.9.1-6.el7_2.2, libxml2-2.9.1-6.el7_2.2.ppc, libxml2-devel-2.9.1-6.el7_2.2 +2
- Red Hat Enterprise Linux Server Optional (v. 7) libxml2-static-2.9.1-6.el7_2.2, libxml2-static-2.9.1-6.el7_2.2.ppc
- Red Hat Enterprise Linux Workstation (v. 7) libxml2-2.9.1-6.el7_2.2, libxml2-devel-2.9.1-6.el7_2.2, libxml2-python-2.9.1-6.el7_2.2
- Red Hat Enterprise Linux Workstation Optional (v. 7) libxml2-static-2.9.1-6.el7_2.2
- RHSA-2015:1419 Released 2015-07-20 · Red Hat rating Lowlibxml2 security and bug fix update
- Red Hat Enterprise Linux Desktop (v. 6) libxml2-2.7.6-20.el6, libxml2-python-2.7.6-20.el6
- Red Hat Enterprise Linux Desktop Optional (v. 6) libxml2-devel-2.7.6-20.el6, libxml2-static-2.7.6-20.el6
- Red Hat Enterprise Linux HPC Node (v. 6) libxml2-2.7.6-20.el6, libxml2-python-2.7.6-20.el6
- Red Hat Enterprise Linux HPC Node Optional (v. 6) libxml2-devel-2.7.6-20.el6, libxml2-static-2.7.6-20.el6
- Red Hat Enterprise Linux Server (v. 6) libxml2-2.7.6-20.el6, libxml2-2.7.6-20.el6.ppc, libxml2-devel-2.7.6-20.el6 +2
- Red Hat Enterprise Linux Server Optional (v. 6) libxml2-static-2.7.6-20.el6
- Red Hat Enterprise Linux Workstation (v. 6) libxml2-2.7.6-20.el6, libxml2-devel-2.7.6-20.el6, libxml2-python-2.7.6-20.el6
- Red Hat Enterprise Linux Workstation Optional (v. 6) libxml2-static-2.7.6-20.el6
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2015:2550 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2015:2550 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2015:2550 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2015:2550 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2015:1419 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2015:1419 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2015:1419 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2015:1419 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2015:1419 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2015:2550 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2015:1419 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2015:2550 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2015:1419 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2015:2550 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2015:1419 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2015:2550 |
Timeline
- 2026-10-02 Threatist record created from CVE-2015-1819
- 2026-10-03 Alias added: GHSA-q7wx-62r7-j2x7
References
Advisory 22
- RHSA-2015:2550
- APPLE-SA-2016-03-21-5
- openSUSE-SU-2016:0106
- https://support.apple.com/HT206167
- https://support.apple.com/HT206168
- DSA-3430
- FEDORA-2015-037f844d3e
- APPLE-SA-2016-03-21-1
- http://xmlsoft.org/news.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- GLSA-201507-08
- APPLE-SA-2016-03-21-2
- FEDORA-2015-c24af963a2
- USN-2812-1
- RHSA-2015:1419
- GLSA-201701-37
- openSUSE-SU-2015:2372
- APPLE-SA-2016-03-21-3
- https://support.apple.com/HT206169
- https://support.apple.com/HT206166
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
- https://nvd.nist.gov/vuln/detail/CVE-2015-1819
Sources
- CVE-2015-1819 · CVE Program
- CVE-2015-1819 · NVD
- FIRST EPSS
- GHSA-q7wx-62r7-j2x7 · GitHub Advisory Database · CC BY 4.0
- CVE-2015-1819 · Red Hat security data · CC BY 4.0
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