CVE-2022-23852

Home/CVE/Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_

CVE

Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_

Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_CONTEXT_BYTES.

CRITICAL · CVSS 9.8 EPSS 0.01618

Schedule remediation

SSVC automatable: yes - attacks can be scripted at scale
CVSS base score ≥ 7.0

Sigma rules0 YARA rules0

⬡

Weakness Classification

CWE-190Integer Overflow or Wraparound

▤

Affected Products & Versions

libexpat project libexpat< 2.4.4
netapp clustered data ontapall versions
netapp oncommand workflow automationall versions
tenable nessus< 8.15.3
tenable nessus>= 10.0.0 and < 10.1.1
oracle communications metasolv solutionall versions
debian linuxall versions
siemens sinema remote connect server< 3.1

▣

Scoring & Timeline

9.8

CRITICAL · 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 Jan 2022 · 02:15 AM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC triage · cisa-vulnrichment

Exploitation

none

Automatable

yes

Technical impact

total

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

suse-csafopenSUSE-SU-2024:11793-1
suse-csafopenSUSE-SU-2024:11985-1
siemens-csafSSA-398330
android-securityANDROID-2022-09-01High
siemens-csafSSA-484086
Show all 20 vendor advisoriesusnUSN-5288-1
rhsaRHSA-2022:7144Moderate
rhsaRHSA-2022:0951Important
rhsaRHSA-2022:1069Important
rhsaRHBA-2022:4046Important
suse-csafopenSUSE-SU-2022:0498-1
suse-csafSUSE-SU-2022:0495-1
suse-csafSUSE-SU-2022:0498-1
suse-csafSUSE-SU-2022:14884-1
msrcCVE-2022-23852
rhsaRHSA-2022:4834Moderate
oracle-cpuoracle-cpu-Oracle-Communications-MetaSolv-Solution-2267--CVE-2022-23852
cisa-csafcisa-csaf-csaf_files-OT-white-2022-icsa-22-167-17
cisa-csafcisa-csaf-csaf_files-OT-white-2023-icsa-23-278-01
cisa-csafcisa-csaf-csaf_files-OT-white-2023-icsa-23-348-10

🔗

References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdfThird Party Advisory

https://github.com/libexpat/libexpat/pull/550Issue TrackingPatchThird Party Advisory

https://lists.debian.org/debian-lts-announce/2022/03/msg00007.htmlMailing ListThird Party Advisory

https://security.gentoo.org/glsa/202209-24Third Party Advisory

https://security.netapp.com/advisory/ntap-20220217-0001/Third Party Advisory

https://www.debian.org/security/2022/dsa-5073Third Party Advisory

Show all 8 references

https://www.oracle.com/security-alerts/cpuapr2022.htmlThird Party Advisory

https://www.tenable.com/security/tns-2022-05Third Party Advisory

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