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CVE-2015-7498

2026-10-03T16:30:20.348697+00:00

Heap-based buffer overflow in the xmlParseXmlDecl function in parser.c in libxml2 before 2.9.3 allows context-dependent attackers to cause a denial of service via unspecified vectors related to extracting errors after an encoding conversion failure.

RHSA-2015:2549 — Red Hat Security Advisory: libxml2 security update

2026-10-03T16:30:20.348750+00:00

libxml2: CPU exhaustion when processing specially crafted XML input libxml2: Heap-based buffer overflow in xmlDictComputeFastQKey libxml2: Heap-based buffer overflow in xmlParseXmlDecl libxml2: Heap-based buffer overflow in xmlGROW libxml2: Heap buffer overflow in xmlParseMisc libxml2: Out-of-bounds memory access libxml2: heap-based buffer overflow in xmlParseConditionalSections() libxml2: Buffer overread with XML parser in xmlNextChar libxml2: Buffer overread with HTML parser in push mode in xmlSAX2TextNode libxml2: Out-of-bounds heap read when parsing file with unfinished xml declaration libxml2: out-of-bounds memory access when parsing an unclosed HTML comment

RHSA-2015:2550 — Red Hat Security Advisory: libxml2 security update

2026-10-03T16:30:20.348790+00:00

libxml2: denial of service processing a crafted XML document libxml2: CPU exhaustion when processing specially crafted XML input libxml2: Heap-based buffer overflow in xmlDictComputeFastQKey libxml2: Heap-based buffer overflow in xmlParseXmlDecl libxml2: Heap-based buffer overflow in xmlGROW libxml2: Heap buffer overflow in xmlParseMisc libxml2: Out-of-bounds memory access libxml2: heap-based buffer overflow in xmlParseConditionalSections() libxml2: Buffer overread with XML parser in xmlNextChar libxml2: Buffer overread with HTML parser in push mode in xmlSAX2TextNode libxml2: Out-of-bounds heap read when parsing file with unfinished xml declaration libxml2: out-of-bounds memory access when parsing an unclosed HTML comment

USN-2834-1 — libxml2 vulnerabilities

2026-10-03T16:30:20.348828+00:00

Affected: Ubuntu:14.04:LTS: libxml2

Kostya Serebryany discovered that libxml2 incorrectly handled certain malformed documents. If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly cause libxml2 to crash, resulting in a denial of service. (CVE-2015-5312, CVE-2015-7497, CVE-2015-7498, CVE-2015-7499,CVE-2015-7500)

Hugh Davenport discovered that libxml2 incorrectly handled certain malformed documents. If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly cause libxml2 to crash, resulting in a denial of service. (CVE-2015-8241, CVE-2015-8242)

Hanno Boeck discovered that libxml2 incorrectly handled certain malformed documents. If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly cause libxml2 to crash, resulting in a denial of service. This issue only applied to Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-8317)