by Kastro
Paper/Archive/CVE-2022-25235

CVE-2022-25235

Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP — xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a UTF-8 character is…

EPSS 5%CVSS 9.8
critical.is priorityof 100
48
CVSS 9.8 (ADP, NVD agree)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 92.2.922 × 2018.4No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a UTF-8 character is valid in a certain context.

Affected

ProductAffectedFixed inSource
n/an/a–CNA
SIMATIC S7-1500 CPU 1518-4 PN/DP MFPV3.1.0 – < V3.1.5V3.1.5siemens-SADP
SIMATIC S7-1500 CPU 1518-4 PN/DP MFPV3.1.0 – < V3.1.5V3.1.5siemens-SADP
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPV3.1.0 – < V3.1.5V3.1.5siemens-SADP
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPV3.1.0 – < V3.1.5V3.1.5siemens-SADP
SIPLUS S7-1500 CPU 1518-4 PN/DP MFPV3.1.0 – < V3.1.5V3.1.5siemens-SADP

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refgithub.com/libexpat/libexpat/pull/562refopenwall.com/lists/oss-security/2022/02/19/1advisorydebian.org/security/2022/dsa-5085advisorylists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3UFRBA3UQVIQKXTBUQXDWQOVWNBKLERUadvisorylists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y27XO3JMKAOMQZVPS3B4MJGEAHCZF5OMreflists.debian.org/debian-lts-announce/2022/03/msg00007.htmlreforacle.com/security-alerts/cpuapr2022.htmlrefsecurity.netapp.com/advisory/ntap-20220303-0008refcert-portal.siemens.com/productcert/pdf/ssa-484086.pdfadvisorysecurity.gentoo.org/glsa/202209-24refcert-portal.siemens.com/productcert/html/ssa-484086.htmlrefcert-portal.siemens.com/productcert/html/ssa-398330.html