Description
In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large nesting depth in the DTD element.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- Debian / debian_linux10.0 – 10.0
- Debian / debian_linux11.0 – 11.0
- fedoraproject / fedora35 – 35
- fedoraproject / fedora34 – 34
- libexpat project / libexpat2.4.5
- oracle / http_server12.2.1.3.0 – 12.2.1.3.0
- oracle / http_server12.2.1.4.0 – 12.2.1.4.0
- oracle / zfs_storage_appliance_kit8.8 – 8.8
- Siemens / SINEMA Remote Connect Server3.1
References
- PATCHhttps://github.com/libexpat/libexpat/pull/558
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2022/02/19/1
- VENDOR_ADVISORYhttps://www.debian.org/security/2022/dsa-5085
- MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3UFRBA3UQVIQKXTBUQXDWQOVWNBKLERU/
- MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y27XO3JMKAOMQZVPS3B4MJGEAHCZF5OM/
- MAILING_LISThttps://lists.debian.org/debian-lts-announce/2022/03/msg00007.html
- VENDOR_ADVISORYhttps://www.oracle.com/security-alerts/cpuapr2022.html
- MISChttps://security.netapp.com/advisory/ntap-20220303-0008/
- MISChttps://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
- MISChttps://security.gentoo.org/glsa/202209-24
Updated 15m ago · 8 sources