ALT-PU-2026-7312-3

Package update expat in branch c10f2

Version2.5.0-alt5

Published2026-05-12

Max severityHIGH

Severity:

Closed issues (4)

MEDIUM5.9

Уязвимость функции XML_ResumeParser библиотеки для анализа XML-файлов libexpat, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2025-01-15Modified: 2026-05-26

CVSS 3.xMEDIUM 5.9

CVSS:3.x/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS 2.0MEDIUM 5.4

CVSS:2.0/AV:N/AC:H/Au:N/C:N/I:N/A:C

References

HIGH7.5

Уязвимость библиотеки для анализа XML-файлов libexpat, связанная с переполнением буфера в стеке, позволяющая нарушителю выполнить произвольный код на целевой системе

Published: 2025-04-14Modified: 2026-05-26

CVSS 3.xHIGH 7.5

CVSS:3.x/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS 2.0HIGH 7.8

CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:C

References

MEDIUM5.9

An issue was discovered in libexpat before 2.6.4. There is a crash within the XML_ResumeParser function because XML_StopParser can stop/suspend an unstarted parser.

Published: 2024-10-27Modified: 2026-06-17

CVSS 3.xMEDIUM 5.9

CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References

HIGH7.5

A stack overflow vulnerability exists in the libexpat library due to the way it handles recursive entity expansion in XML documents. When parsing an XML document with deeply nested entity references, libexpat can be forced to recurse indefinitely, exhausting the stack space and causing a crash. This issue could lead to denial of service (DoS) or, in some cases, exploitable memory corruption, depending on the environment and library usage.

Published: 2025-03-14Modified: 2026-06-29

CVSS 3.xHIGH 7.5

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References