Home/CVE/xmlParseBalancedChunkMemoryRecover in parser.c in libxml2 before 2.9.10 has a memory leak related to newDoc-oldNs.
CVE

CVE-2019-19956

xmlParseBalancedChunkMemoryRecover in parser.c in libxml2 before 2.9.10 has a memory leak related to newDoc-oldNs.

xmlParseBalancedChunkMemoryRecover in parser.c in libxml2 before 2.9.10 has a memory leak related to newDoc-oldNs.

HIGH · CVSS 7.5 EPSS 0.0021
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-401Missing Release of Memory after Effective Lifetime
CWE-772Missing Release of Resource after Effective Lifetime
▤

Affected Products & Versions

12
xmlsoft libxml2< 2.9.10
debian linuxall versions
oracle real user experience insightall versions
fedoraproject fedoraall versions
canonical ubuntu linuxall versions
netapp active iq unified managerall versions
netapp clustered data ontapall versions
netapp clustered data ontap antivirus connectorall versions
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · cve@mitre.org
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 NVD24 Dec 2019 · 04:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

18
suse-csafopenSUSE-SU-2024:11016-1
siemens-csafSSA-398330
suse-csafSUSE-SU-2021:14729-1
siemens-csafSSA-292794
rhsaRHSA-2021:0949Important
🔗

References & Sources

12
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00047.htmlBroken Link
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00005.htmlBroken Link
https://cert-portal.siemens.com/productcert/pdf/ssa-292794.pdfThird Party Advisory
https://gitlab.gnome.org/GNOME/libxml2/commit/5a02583c7e683896d84878bd90641d8d9b0d0549PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/12/msg00032.htmlMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00009.htmlMailing ListThird Party Advisory
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