CVE-2022-25313: libexpat before 2.4.5 (exclusive); +9 more affected products

Affected technology

libexpat · before 2.4.5 (exclusive)
libexpat project

debian linux · 10.0
debian

debian linux · 11.0
debian

fedora · 34
fedoraproject

fedora · 35
fedoraproject

http server · 12.2.1.3.0
oracle

http server · 12.2.1.4.0
oracle

zfs storage appliance kit · 8.8
oracle

sinema remote connect server · before 3.1 (exclusive)
siemens

n/a · n/a
Vendor not specified by the source

SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens

SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens

SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens

Description’s affected range: before 2.4.5

Component: Not specified by the source

Attack conditions (NVD, CVSS 3.1): Network (remote) · No privileges required · User interaction required

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · User interaction required

What an attacker can do

An attacker can trigger stack exhaustion in build_model via a large nesting depth in the DTD element. NVD’s CVSS 3.1 assessment (base score 6.5/10) rates confidentiality and integrity impact as none; availability impact as high. Source advisory’s CVSS 3.1 assessment (base score 6.5/10) rates confidentiality and integrity impact as none; availability impact as high.