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Vuln ID | Summary | CVSS Severity |
---|---|---|
CVE-2021-46143 |
In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize. Published: January 05, 2022; 11:15:07 PM -0500 |
V4.0:(not available) V3.1: 7.8 HIGH V2.0: 6.8 MEDIUM |
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). Published: January 01, 2022; 2:15:08 PM -0500 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 9.0 HIGH |
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. Published: September 04, 2019; 2:15:10 AM -0400 |
V4.0:(not available) V3.1: 7.5 HIGH V2.0: 5.0 MEDIUM |
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). Published: June 24, 2019; 1:15:09 PM -0400 |
V4.0:(not available) V3.1: 7.5 HIGH V2.0: 7.8 HIGH |
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. Published: July 25, 2017; 4:29:00 PM -0400 |
V4.0:(not available) V3.1: 7.5 HIGH V2.0: 5.0 MEDIUM |
CVE-2016-4472 |
The overflow protection in Expat is removed by compilers with certain optimization settings, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via crafted XML data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1283 and CVE-2015-2716. Published: June 30, 2016; 1:59:04 PM -0400 |
V4.0:(not available) V3.1: 8.1 HIGH V2.0: 6.8 MEDIUM |
CVE-2016-5300 |
The XML parser in Expat does not use sufficient entropy for hash initialization, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted identifiers in an XML document. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-0876. Published: June 16, 2016; 2:59:10 PM -0400 |
V4.0:(not available) V3.0: 7.5 HIGH V2.0: 7.8 HIGH |
CVE-2012-6702 |
Expat, when used in a parser that has not called XML_SetHashSalt or passed it a seed of 0, makes it easier for context-dependent attackers to defeat cryptographic protection mechanisms via vectors involving use of the srand function. Published: June 16, 2016; 2:59:00 PM -0400 |
V4.0:(not available) V3.0: 5.9 MEDIUM V2.0: 4.3 MEDIUM |
CVE-2016-0718 |
Expat allows context-dependent attackers to cause a denial of service (crash) or possibly execute arbitrary code via a malformed input document, which triggers a buffer overflow. Published: May 26, 2016; 12:59:00 PM -0400 |
V4.0:(not available) V3.1: 9.8 CRITICAL V2.0: 7.5 HIGH |
CVE-2015-1283 |
Multiple integer overflows in the XML_GetBuffer function in Expat through 2.1.0, as used in Google Chrome before 44.0.2403.89 and other products, allow remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via crafted XML data, a related issue to CVE-2015-2716. Published: July 22, 2015; 8:59:12 PM -0400 |
V4.0:(not available) V3.x:(not available) V2.0: 6.8 MEDIUM |
CVE-2013-0340 |
expat 2.1.0 and earlier does not properly handle entities expansion unless an application developer uses the XML_SetEntityDeclHandler function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because expat already provides the ability to disable external entity expansion, the responsibility for resolving this issue lies with application developers; according to this argument, this entry should be REJECTed, and each affected application would need its own CVE. Published: January 21, 2014; 1:55:09 PM -0500 |
V4.0:(not available) V3.x:(not available) V2.0: 6.8 MEDIUM |
CVE-2012-1148 |
Memory leak in the poolGrow function in expat/lib/xmlparse.c in expat before 2.1.0 allows context-dependent attackers to cause a denial of service (memory consumption) via a large number of crafted XML files that cause improperly-handled reallocation failures when expanding entities. Published: July 03, 2012; 3:55:02 PM -0400 |
V4.0:(not available) V3.x:(not available) V2.0: 5.0 MEDIUM |
CVE-2012-1147 |
readfilemap.c in expat before 2.1.0 allows context-dependent attackers to cause a denial of service (file descriptor consumption) via a large number of crafted XML files. Published: July 03, 2012; 3:55:02 PM -0400 |
V4.0:(not available) V3.x:(not available) V2.0: 4.3 MEDIUM |
CVE-2012-0876 |
The XML parser (xmlparse.c) in expat before 2.1.0 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via an XML file with many identifiers with the same value. Published: July 03, 2012; 3:55:02 PM -0400 |
V4.0:(not available) V3.x:(not available) V2.0: 4.3 MEDIUM |