ALPINE-CVE-2018-20843

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Source
https://security.alpinelinux.org/vuln/CVE-2018-20843
Import Source
https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-20843.json
JSON Data
https://api.osv.dev/v1/vulns/ALPINE-CVE-2018-20843
Upstream
Published
2019-06-24T17:15:09Z
Modified
2025-09-30T05:11:58.973582Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

In libexpat in Expat before 2.2.7, XML input including XML names that contain a large number of colons could make the XML parser consume a high amount of RAM and CPU resources while processing (enough to be usable for denial-of-service attacks).

References

Affected packages

Alpine:v3.10

expat

Package

Name
expat
Purl
pkg:apk/alpine/expat?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.7-r0

Affected versions

2.*

2.0.1-r0
2.0.1-r1
2.0.1-r2
2.0.1-r3
2.0.1-r4
2.0.1-r5
2.0.1-r6
2.1.0-r0
2.1.0-r1
2.1.0-r2
2.1.1-r0
2.2.0-r0
2.2.0-r1
2.2.1-r0
2.2.2-r0
2.2.3-r0
2.2.3-r1
2.2.4-r0
2.2.5-r0
2.2.6-r0

Alpine:v3.11

expat

Package

Name
expat
Purl
pkg:apk/alpine/expat?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.7-r0

Affected versions

2.*

2.0.1-r0
2.0.1-r1
2.0.1-r2
2.0.1-r3
2.0.1-r4
2.0.1-r5
2.0.1-r6
2.1.0-r0
2.1.0-r1
2.1.0-r2
2.1.1-r0
2.2.0-r0
2.2.0-r1
2.2.1-r0
2.2.2-r0
2.2.3-r0
2.2.3-r1
2.2.4-r0
2.2.5-r0
2.2.6-r0

Alpine:v3.12

expat

Package

Name
expat
Purl
pkg:apk/alpine/expat?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.7-r0

Affected versions

2.*

2.0.1-r0
2.0.1-r1
2.0.1-r2
2.0.1-r3
2.0.1-r4
2.0.1-r5
2.0.1-r6
2.1.0-r0
2.1.0-r1
2.1.0-r2
2.1.1-r0
2.2.0-r0
2.2.0-r1
2.2.1-r0
2.2.2-r0
2.2.3-r0
2.2.3-r1
2.2.4-r0
2.2.5-r0
2.2.6-r0

Alpine:v3.13

expat

Package

Name
expat
Purl
pkg:apk/alpine/expat?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.7-r0

Affected versions

2.*

2.0.1-r0
2.0.1-r1
2.0.1-r2
2.0.1-r3
2.0.1-r4
2.0.1-r5
2.0.1-r6
2.1.0-r0
2.1.0-r1
2.1.0-r2
2.1.1-r0
2.2.0-r0
2.2.0-r1
2.2.1-r0
2.2.2-r0
2.2.3-r0
2.2.3-r1
2.2.4-r0
2.2.5-r0
2.2.6-r0

Alpine:v3.14

expat

Package

Name
expat
Purl
pkg:apk/alpine/expat?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.7-r0

Affected versions

2.*

2.0.1-r0
2.0.1-r1
2.0.1-r2
2.0.1-r3
2.0.1-r4
2.0.1-r5
2.0.1-r6
2.1.0-r0
2.1.0-r1
2.1.0-r2
2.1.1-r0
2.2.0-r0
2.2.0-r1
2.2.1-r0
2.2.2-r0
2.2.3-r0
2.2.3-r1
2.2.4-r0
2.2.5-r0
2.2.6-r0

Alpine:v3.15

expat

Package

Name
expat
Purl
pkg:apk/alpine/expat?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.7-r0

Affected versions

2.*

2.0.1-r0
2.0.1-r1
2.0.1-r2
2.0.1-r3
2.0.1-r4
2.0.1-r5
2.0.1-r6
2.1.0-r0
2.1.0-r1
2.1.0-r2
2.1.1-r0
2.2.0-r0
2.2.0-r1
2.2.1-r0
2.2.2-r0
2.2.3-r0
2.2.3-r1
2.2.4-r0
2.2.5-r0
2.2.6-r0

Alpine:v3.16

expat

Package

Name
expat
Purl
pkg:apk/alpine/expat?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.7-r0

Affected versions

2.*

2.0.1-r0
2.0.1-r1
2.0.1-r2
2.0.1-r3
2.0.1-r4
2.0.1-r5
2.0.1-r6
2.1.0-r0
2.1.0-r1
2.1.0-r2
2.1.1-r0
2.2.0-r0
2.2.0-r1
2.2.1-r0
2.2.2-r0
2.2.3-r0
2.2.3-r1
2.2.4-r0
2.2.5-r0
2.2.6-r0

Alpine:v3.17

expat

Package

Name
expat
Purl
pkg:apk/alpine/expat?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.7-r0

Affected versions

2.*

2.0.1-r0
2.0.1-r1
2.0.1-r2
2.0.1-r3
2.0.1-r4
2.0.1-r5
2.0.1-r6
2.1.0-r0
2.1.0-r1
2.1.0-r2
2.1.1-r0
2.2.0-r0
2.2.0-r1
2.2.1-r0
2.2.2-r0
2.2.3-r0
2.2.3-r1
2.2.4-r0
2.2.5-r0
2.2.6-r0

Alpine:v3.18

expat

Package

Name
expat
Purl
pkg:apk/alpine/expat?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.7-r0

Affected versions

2.*

2.0.1-r0
2.0.1-r1
2.0.1-r2
2.0.1-r3
2.0.1-r4
2.0.1-r5
2.0.1-r6
2.1.0-r0
2.1.0-r1
2.1.0-r2
2.1.1-r0
2.2.0-r0
2.2.0-r1
2.2.1-r0
2.2.2-r0
2.2.3-r0
2.2.3-r1
2.2.4-r0
2.2.5-r0
2.2.6-r0

Alpine:v3.19

expat

Package

Name
expat
Purl
pkg:apk/alpine/expat?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.7-r0

Affected versions

2.*

2.0.1-r0
2.0.1-r1
2.0.1-r2
2.0.1-r3
2.0.1-r4
2.0.1-r5
2.0.1-r6
2.1.0-r0
2.1.0-r1
2.1.0-r2
2.1.1-r0
2.2.0-r0
2.2.0-r1
2.2.1-r0
2.2.2-r0
2.2.3-r0
2.2.3-r1
2.2.4-r0
2.2.5-r0
2.2.6-r0

Alpine:v3.20

expat

Package

Name
expat
Purl
pkg:apk/alpine/expat?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.7-r0

Affected versions

2.*

2.0.1-r0
2.0.1-r1
2.0.1-r2
2.0.1-r3
2.0.1-r4
2.0.1-r5
2.0.1-r6
2.1.0-r0
2.1.0-r1
2.1.0-r2
2.1.1-r0
2.2.0-r0
2.2.0-r1
2.2.1-r0
2.2.2-r0
2.2.3-r0
2.2.3-r1
2.2.4-r0
2.2.5-r0
2.2.6-r0

Alpine:v3.21

expat

Package

Name
expat
Purl
pkg:apk/alpine/expat?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.7-r0

Affected versions

2.*

2.0.1-r0
2.0.1-r1
2.0.1-r2
2.0.1-r3
2.0.1-r4
2.0.1-r5
2.0.1-r6
2.1.0-r0
2.1.0-r1
2.1.0-r2
2.1.1-r0
2.2.0-r0
2.2.0-r1
2.2.1-r0
2.2.2-r0
2.2.3-r0
2.2.3-r1
2.2.4-r0
2.2.5-r0
2.2.6-r0

Alpine:v3.22

expat

Package

Name
expat
Purl
pkg:apk/alpine/expat?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.7-r0

Affected versions

2.*

2.0.1-r0
2.0.1-r1
2.0.1-r2
2.0.1-r3
2.0.1-r4
2.0.1-r5
2.0.1-r6
2.1.0-r0
2.1.0-r1
2.1.0-r2
2.1.1-r0
2.2.0-r0
2.2.0-r1
2.2.1-r0
2.2.2-r0
2.2.3-r0
2.2.3-r1
2.2.4-r0
2.2.5-r0
2.2.6-r0

Alpine:v3.7

expat

Package

Name
expat
Purl
pkg:apk/alpine/expat?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.7-r0

Affected versions

2.*

2.0.1-r0
2.0.1-r1
2.0.1-r2
2.0.1-r3
2.0.1-r4
2.0.1-r5
2.0.1-r6
2.1.0-r0
2.1.0-r1
2.1.0-r2
2.1.1-r0
2.2.0-r0
2.2.0-r1
2.2.1-r0
2.2.2-r0
2.2.3-r0
2.2.3-r1
2.2.4-r0
2.2.5-r0

Alpine:v3.8

expat

Package

Name
expat
Purl
pkg:apk/alpine/expat?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.7-r0

Affected versions

2.*

2.0.1-r0
2.0.1-r1
2.0.1-r2
2.0.1-r3
2.0.1-r4
2.0.1-r5
2.0.1-r6
2.1.0-r0
2.1.0-r1
2.1.0-r2
2.1.1-r0
2.2.0-r0
2.2.0-r1
2.2.1-r0
2.2.2-r0
2.2.3-r0
2.2.3-r1
2.2.4-r0
2.2.5-r0

Alpine:v3.9

expat

Package

Name
expat
Purl
pkg:apk/alpine/expat?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.7-r0

Affected versions

2.*

2.0.1-r0
2.0.1-r1
2.0.1-r2
2.0.1-r3
2.0.1-r4
2.0.1-r5
2.0.1-r6
2.1.0-r0
2.1.0-r1
2.1.0-r2
2.1.1-r0
2.2.0-r0
2.2.0-r1
2.2.1-r0
2.2.2-r0
2.2.3-r0
2.2.3-r1
2.2.4-r0
2.2.5-r0
2.2.6-r0