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CVE-2023-52426

libexpat through 2.5.0 allows recursive XML Entity Expansion if XML_DTD is undefined at compile time.

CVE-2023-52425

libexpat through 2.5.0 allows a denial of service (resource consumption) because many full reparsings are required in the case of a large token for which multiple buffer fills are needed.

CVE-2022-43680

In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations.

CVE-2022-40674

libexpat before 2.4.9 has a use-after-free in the doContent function in xmlparse.c.

CVE-2022-25314

In Expat (aka libexpat) before 2.4.5, there is an integer overflow in copyString.

CVE-2022-25315

In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames.

CVE-2022-25313

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.

CVE-2022-25235

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.

• Обновитесь до 2.4.7-6ubuntu0.1~esm1

CVE-2022-25236

xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namespace URIs.

• Обновитесь до 2.4.7-6ubuntu0.1~esm1

CVE-2022-22822

addBinding in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.

CVE-2022-22823

build_model in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.

CVE-2022-22824

defineAttribute in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.

CVE-2022-22825

lookup in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.

CVE-2022-22826

nextScaffoldPart in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.

CVE-2022-22827

storeAtts in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.

CVE-2021-46143

In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize.

CVE-2021-45960

In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory).

CVE-2019-15903

In libexpat before 2.2.8, crafted XML input could fool the parser into changing from DTD parsing to document parsing too early; a consecutive call to XML_GetCurrentLineNumber (or XML_GetCurrentColumnNumber) then resulted in a heap-based buffer over-read.

CVE-2018-20843

In libexpat in Expat before 2.2.7, XML input including XML names that contain a large number of colons could make the XML parser consume a high amount of RAM and CPU resources while processing (enough to be usable for denial-of-service attacks).

CVE-2017-9233

XML External Entity vulnerability in libexpat 2.2.0 and earlier (Expat XML Parser Library) allows attackers to put the parser in an infinite loop using a malformed external entity definition from an external DTD.