Libexpat Project: >> Libexpat >> 2.0.0 Security Vulnerabilities
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.
CVSS Score
7.5
EPSS Score
0.004
Published
2022-10-24
libexpat before 2.4.9 has a use-after-free in the doContent function in xmlparse.c.
CVSS Score
8.1
EPSS Score
0.009
Published
2022-09-14
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 Score
6.5
EPSS Score
0.001
Published
2022-02-18
In Expat (aka libexpat) before 2.4.5, there is an integer overflow in copyString.
CVSS Score
7.5
EPSS Score
0.004
Published
2022-02-18
In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames.
CVSS Score
9.8
EPSS Score
0.077
Published
2022-02-18
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.
CVSS Score
9.8
EPSS Score
0.133
Published
2022-02-16
xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namespace URIs.
CVSS Score
9.8
EPSS Score
0.094
Published
2022-02-16
Expat (aka libexpat) before 2.4.4 has an integer overflow in the doProlog function.
CVSS Score
7.5
EPSS Score
0.035
Published
2022-01-26
Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_CONTEXT_BYTES.
CVSS Score
9.8
EPSS Score
0.017
Published
2022-01-24
nextScaffoldPart in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVSS Score
8.8
EPSS Score
0.002
Published
2022-01-10