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osvGoogleOSV:ALSA-2023:0103
HistoryJan 12, 2023 - 12:00 a.m.

Moderate: expat security update

2023-01-1200:00:00
Google
osv.dev
12
expat
security fix
use-after free
xml parsing
cve-2022-43680
cvss score
references
software

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.8

Confidence

High

EPSS

0.004

Percentile

74.1%

Expat is a C library for parsing XML documents.

Security Fix(es):

  • expat: use-after free caused by overeager destruction of a shared DTD in
    XML_ExternalEntityParserCreate (CVE-2022-43680)

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.

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.8

Confidence

High

EPSS

0.004

Percentile

74.1%