VulnerabilityModified
CVE-2022-23852
Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_CONTEXT_BYTES.
CRITICAL 9.8EPSS 4.56%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.56%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_CONTEXT_BYTES.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 4.56% probability · 91th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- libexpat project/libexpat · netapp/clustered data ontap · netapp/oncommand workflow automation · tenable/nessus · oracle/communications metasolv solution · debian/debian linux · siemens/sinema remote connect server
- Source
- cve@mitre.org
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdfThird Party Advisory
- https://github.com/libexpat/libexpat/pull/550Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/03/msg00007.htmlMailing List, Third 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
- https://www.oracle.com/security-alerts/cpuapr2022.htmlThird Party Advisory
- https://www.tenable.com/security/tns-2022-05Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdfThird Party Advisory
- https://github.com/libexpat/libexpat/pull/550Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/03/msg00007.htmlMailing List, Third 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
- https://www.oracle.com/security-alerts/cpuapr2022.htmlThird Party Advisory
- https://www.tenable.com/security/tns-2022-05Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.