Libexpat Project: Security Vulnerabilities
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
0.046
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
0.028
Published
2022-01-10
storeAtts in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVSS Score
8.8
EPSS Score
0.028
Published
2022-01-10
addBinding in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVSS Score
9.8
EPSS Score
0.048
Published
2022-01-10
build_model in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVSS Score
9.8
EPSS Score
0.034
Published
2022-01-10
defineAttribute in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVSS Score
9.8
EPSS Score
0.034
Published
2022-01-10
lookup in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVSS Score
8.8
EPSS Score
0.026
Published
2022-01-10
In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize.
CVSS Score
8.1
EPSS Score
0.038
Published
2022-01-06
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).
CVSS Score
8.8
EPSS Score
0.042
Published
2022-01-01
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.
CVSS Score
7.5
EPSS Score
0.066
Published
2019-09-04