CVE-2022-25236Critical· 9.8▾ AbyssalPoC availablexmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namespace URIs.
▾ Abyssal zone — Critical with a public exploit or in-the-wild use
impact 53.9 · likelihood 6.8 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 1 source. Availability, not in-the-wild use.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
34%
1 GitHub repo (last check)
xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namespace URIs.
libexpat < 2.4.5debian_linux = 10.0debian_linux = 11.0http_server = 12.2.1.3.0http_server = 12.2.1.4.0zfs_storage_appliance_kit = 8.8sinema_remote_connect_server < 3.1Upgrade past the affected range:
libexpat 2.4.5sinema_remote_connect_server 3.1Connected by shared product, vendor, weakness, or advisory.
CVE-2022-25315Critical· 9.8In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames.
CVE-2022-25313Medium· 6.5In 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.
CVE-2022-25314High· 7.5In Expat (aka libexpat) before 2.4.5, there is an integer overflow in copyString.
CVE-2022-23990High· 7.5Expat (aka libexpat) before 2.4.4 has an integer overflow in the doProlog function.
CVE-2022-25235Critical· 9.8xmltok_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.
CVE-2022-23852Critical· 9.8Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_CONTEXT_BYTES.