CVE-2021-45960

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Source
https://nvd.nist.gov/vuln/detail/CVE-2021-45960
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-45960.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-45960
Related
Published
2022-01-01T19:15:08Z
Modified
2025-05-05T18:51:14.670532Z
Downstream
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory).

References

Affected packages

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
2.2.10-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
2.2.7-r0
2.2.7-r1
2.2.8-r0
2.2.9-r0
2.2.9-r1

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
2.2.10-r2

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
2.2.7-r0
2.2.7-r1
2.2.8-r0
2.2.9-r0
2.2.9-r1
2.2.10-r0
2.2.10-r1

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
2.4.3-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
2.2.7-r0
2.2.7-r1
2.2.8-r0
2.2.9-r0
2.2.9-r1
2.2.10-r0
2.2.10-r1
2.3.0-r0
2.4.1-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
2.4.3-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
2.2.7-r0
2.2.7-r1
2.2.8-r0
2.2.9-r0
2.2.9-r1
2.2.10-r0
2.2.10-r1
2.3.0-r0
2.4.1-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
2.4.3-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
2.2.7-r0
2.2.7-r1
2.2.8-r0
2.2.9-r0
2.2.9-r1
2.2.10-r0
2.2.10-r1
2.3.0-r0
2.4.1-r0
2.4.2-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
2.4.3-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
2.2.7-r0
2.2.7-r1
2.2.8-r0
2.2.9-r0
2.2.9-r1
2.2.10-r0
2.2.10-r1
2.3.0-r0
2.4.1-r0
2.4.2-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
2.4.3-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
2.2.7-r0
2.2.7-r1
2.2.8-r0
2.2.9-r0
2.2.9-r1
2.2.10-r0
2.2.10-r1
2.3.0-r0
2.4.1-r0
2.4.2-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
2.4.3-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
2.2.7-r0
2.2.7-r1
2.2.8-r0
2.2.9-r0
2.2.9-r1
2.2.10-r0
2.2.10-r1
2.3.0-r0
2.4.1-r0
2.4.2-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
2.4.3-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
2.2.7-r0
2.2.7-r1
2.2.8-r0
2.2.9-r0
2.2.9-r1
2.2.10-r0
2.2.10-r1
2.3.0-r0
2.4.1-r0
2.4.2-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
2.4.3-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
2.2.7-r0
2.2.7-r1
2.2.8-r0
2.2.9-r0
2.2.9-r1
2.2.10-r0
2.2.10-r1
2.3.0-r0
2.4.1-r0
2.4.2-r0

Debian:11 / expat

Package

Name
expat
Purl
pkg:deb/debian/expat?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.10-2+deb11u1

Affected versions

2.*

2.2.10-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / expat

Package

Name
expat
Purl
pkg:deb/debian/expat?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / expat

Package

Name
expat
Purl
pkg:deb/debian/expat?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Git / github.com/libexpat/libexpat

Affected ranges

Type
GIT
Repo
https://github.com/libexpat/libexpat
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
57c7da69b78e3698e112a6b5da19d5109b8232d1

Affected versions

Other

REC1_0
R_1_95_0
R_1_95_2
R_1_95_3
R_1_95_4
R_1_95_5
R_1_95_6
R_1_95_7
R_1_95_8
R_2_0_0
R_2_0_1
R_2_1_0
R_2_1_1
R_2_2_0
R_2_2_1
R_2_2_10
R_2_2_2
R_2_2_3
R_2_2_4
R_2_2_5
R_2_2_6
R_2_2_7
R_2_2_8
R_2_2_9
R_2_3_0
R_2_4_0
R_2_4_1
R_2_4_2
V1990307
V19981122
V19981231
V19990109
V19990425
V19990626
V19990709
V19990728
V19991013
V1_0
V1_1
V20000512
beta2
beta3
beta4
jclark-orig
libexpat-alpha-1
sourceforge_init
start