Vulnerabilities (CVE)

Filtered by vendor Xmlsoft Subscribe
Filtered by product Libxml2
Total 108 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2017-9049 1 Xmlsoft 1 Libxml2 2026-06-17 5.0 MEDIUM 7.5 HIGH
libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictComputeFastKey function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for libxml2 Bug 759398.
CVE-2017-9048 1 Xmlsoft 1 Libxml2 2026-06-17 5.0 MEDIUM 7.5 HIGH
libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a stack-based buffer overflow. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer 'buf' of size 'size'. At the end of the routine, the function may strcat two more characters without checking whether the current strlen(buf) + 2 < size. This vulnerability causes programs that use libxml2, such as PHP, to crash.
CVE-2017-9047 1 Xmlsoft 1 Libxml2 2026-06-17 5.0 MEDIUM 7.5 HIGH
A buffer overflow was discovered in libxml2 20904-GITv2.9.4-16-g0741801. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer 'buf' of size 'size'. The variable len is assigned strlen(buf). If the content->type is XML_ELEMENT_CONTENT_ELEMENT, then (i) the content->prefix is appended to buf (if it actually fits) whereupon (ii) content->name is written to the buffer. However, the check for whether the content->name actually fits also uses 'len' rather than the updated buffer length strlen(buf). This allows us to write about "size" many bytes beyond the allocated memory. This vulnerability causes programs that use libxml2, such as PHP, to crash.
CVE-2017-8872 1 Xmlsoft 1 Libxml2 2026-06-17 6.4 MEDIUM 9.1 CRITICAL
The htmlParseTryOrFinish function in HTMLparser.c in libxml2 2.9.4 allows attackers to cause a denial of service (buffer over-read) or information disclosure.
CVE-2017-7376 3 Debian, Google, Xmlsoft 3 Debian Linux, Android, Libxml2 2026-06-17 10.0 HIGH 9.8 CRITICAL
Buffer overflow in libxml2 allows remote attackers to execute arbitrary code by leveraging an incorrect limit for port values when handling redirects.
CVE-2017-7375 3 Debian, Google, Xmlsoft 3 Debian Linux, Android, Libxml2 2026-06-17 7.5 HIGH 9.8 CRITICAL
A flaw in libxml2 allows remote XML entity inclusion with default parser flags (i.e., when the caller did not request entity substitution, DTD validation, external DTD subset loading, or default DTD attributes). Depending on the context, this may expose a higher-risk attack surface in libxml2 not usually reachable with default parser flags, and expose content from local files, HTTP, or FTP servers (which might be otherwise unreachable).
CVE-2017-5969 1 Xmlsoft 1 Libxml2 2026-06-17 2.6 LOW 4.7 MEDIUM
libxml2 2.9.4, when used in recover mode, allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted XML document. NOTE: The maintainer states "I would disagree of a CVE with the Recover parsing option which should only be used for manual recovery at least for XML parser.
CVE-2017-5130 3 Debian, Google, Xmlsoft 3 Debian Linux, Chrome, Libxml2 2026-06-17 6.8 MEDIUM 8.8 HIGH
An integer overflow in xmlmemory.c in libxml2 before 2.9.5, as used in Google Chrome prior to 62.0.3202.62 and other products, allowed a remote attacker to potentially exploit heap corruption via a crafted XML file.
CVE-2017-18258 1 Xmlsoft 1 Libxml2 2026-06-17 4.3 MEDIUM 6.5 MEDIUM
The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file.
CVE-2017-16932 1 Xmlsoft 1 Libxml2 2026-06-17 5.0 MEDIUM 7.5 HIGH
parser.c in libxml2 before 2.9.5 does not prevent infinite recursion in parameter entities.
CVE-2017-16931 1 Xmlsoft 1 Libxml2 2026-06-17 7.5 HIGH 9.8 CRITICAL
parser.c in libxml2 before 2.9.5 mishandles parameter-entity references because the NEXTL macro calls the xmlParserHandlePEReference function in the case of a '%' character in a DTD name.
CVE-2017-15412 4 Debian, Google, Redhat and 1 more 6 Debian Linux, Chrome, Enterprise Linux Desktop and 3 more 2026-06-17 6.8 MEDIUM 8.8 HIGH
Use after free in libxml2 before 2.9.5, as used in Google Chrome prior to 63.0.3239.84 and other products, allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CVE-2016-9598 2 Redhat, Xmlsoft 2 Jboss Core Services, Libxml2 2026-06-17 4.3 MEDIUM 6.5 MEDIUM
libxml2, as used in Red Hat JBoss Core Services, allows context-dependent attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted XML document. NOTE: this vulnerability exists because of a missing fix for CVE-2016-4483.
CVE-2016-9597 5 Canonical, Debian, Hp and 2 more 6 Ubuntu Linux, Debian Linux, Icewall Federation Agent and 3 more 2026-06-17 5.0 MEDIUM 7.5 HIGH
It was found that Red Hat JBoss Core Services erratum RHSA-2016:2957 for CVE-2016-3705 did not actually include the fix for the issue found in libxml2, making it vulnerable to a Denial of Service attack due to a Stack Overflow. This is a regression CVE for the same issue as CVE-2016-3705.
CVE-2016-9596 2 Redhat, Xmlsoft 2 Jboss Core Services, Libxml2 2026-06-17 4.3 MEDIUM 6.5 MEDIUM
libxml2, as used in Red Hat JBoss Core Services and when in recovery mode, allows context-dependent attackers to cause a denial of service (stack consumption) via a crafted XML document. NOTE: this vulnerability exists because of an incorrect fix for CVE-2016-3627.
CVE-2016-9318 3 Canonical, Xmlsec Project, Xmlsoft 3 Ubuntu Linux, Xmlsec, Libxml2 2026-06-17 4.3 MEDIUM 5.5 MEDIUM
libxml2 2.9.4 and earlier, as used in XMLSec 1.2.23 and earlier and other products, does not offer a flag directly indicating that the current document may be read but other files may not be opened, which makes it easier for remote attackers to conduct XML External Entity (XXE) attacks via a crafted document.
CVE-2016-5131 8 Apple, Canonical, Debian and 5 more 14 Iphone Os, Mac Os X, Tvos and 11 more 2026-06-17 6.8 MEDIUM 8.8 HIGH
Use-after-free vulnerability in libxml2 through 2.9.4, as used in Google Chrome before 52.0.2743.82, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to the XPointer range-to function.
CVE-2016-4658 2 Apple, Xmlsoft 5 Iphone Os, Mac Os X, Tvos and 2 more 2026-06-17 10.0 HIGH 9.8 CRITICAL
xpointer.c in libxml2 before 2.9.5 (as used in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3, and other products) does not forbid namespace nodes in XPointer ranges, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and memory corruption) via a crafted XML document.
CVE-2016-4483 3 Debian, Oracle, Xmlsoft 3 Debian Linux, Solaris, Libxml2 2026-06-17 5.0 MEDIUM 7.5 HIGH
The xmlBufAttrSerializeTxtContent function in xmlsave.c in libxml2 allows context-dependent attackers to cause a denial of service (out-of-bounds read and application crash) via a non-UTF-8 attribute value, related to serialization. NOTE: this vulnerability may be a duplicate of CVE-2016-3627.
CVE-2016-4449 3 Canonical, Debian, Xmlsoft 3 Ubuntu Linux, Debian Linux, Libxml2 2026-06-17 5.8 MEDIUM 7.1 HIGH
XML external entity (XXE) vulnerability in the xmlStringLenDecodeEntities function in parser.c in libxml2 before 2.9.4, when not in validating mode, allows context-dependent attackers to read arbitrary files or cause a denial of service (resource consumption) via unspecified vectors.