Debian Security Bug TrackerDEBIANCVE:CVE-2021-45960CVE-2021-45960
9 High
CVSS2
Attack Vector
NETWORK
Attack 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
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
0.01 Low
EPSS
Percentile
83.9%
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).
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | expat | < 2.4.3-1 | expat_2.4.3-1_all.deb |
| Debian | 11 | all | expat | < 2.2.10-2+deb11u1 | expat_2.2.10-2+deb11u1_all.deb |
| Debian | 10 | all | expat | < 2.2.6-2+deb10u2 | expat_2.2.6-2+deb10u2_all.deb |
| Debian | 999 | all | expat | < 2.4.3-1 | expat_2.4.3-1_all.deb |
| Debian | 13 | all | expat | < 2.4.3-1 | expat_2.4.3-1_all.deb |
Related
9 High
CVSS2
Attack Vector
NETWORK
Attack 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
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
0.01 Low
EPSS
Percentile
83.9%