Lucene search

K
almalinuxAlmaLinuxALSA-2022:0951
HistoryMar 16, 2022 - 12:00 a.m.

Important: expat security update

2022-03-1600:00:00
errata.almalinux.org
29

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:S/C:C/I:C/A:C

0.025 Low

EPSS

Percentile

89.8%

Expat is a C library for parsing XML documents.
Security Fix(es):

  • expat: Malformed 2- and 3-byte UTF-8 sequences can lead to arbitrary code execution (CVE-2022-25235)
  • expat: Namespace-separator characters in “xmlns[:prefix]” attribute values can lead to arbitrary code execution (CVE-2022-25236)
  • expat: Integer overflow in storeRawNames() (CVE-2022-25315)
  • expat: Large number of prefixed XML attributes on a single tag can crash libexpat (CVE-2021-45960)
  • expat: Integer overflow in doProlog in xmlparse.c (CVE-2021-46143)
  • expat: Integer overflow in addBinding in xmlparse.c (CVE-2022-22822)
  • expat: Integer overflow in build_model in xmlparse.c (CVE-2022-22823)
  • expat: Integer overflow in defineAttribute in xmlparse.c (CVE-2022-22824)
  • expat: Integer overflow in lookup in xmlparse.c (CVE-2022-22825)
  • expat: Integer overflow in nextScaffoldPart in xmlparse.c (CVE-2022-22826)
  • expat: Integer overflow in storeAtts in xmlparse.c (CVE-2022-22827)
  • expat: Integer overflow in function XML_GetBuffer (CVE-2022-23852)
    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:S/C:C/I:C/A:C

0.025 Low

EPSS

Percentile

89.8%

Related for ALSA-2022:0951