Debian Security Bug TrackerDEBIANCVE:CVE-2021-29921CVE-2021-29921
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
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
0.008 Low
EPSS
Percentile
81.8%
In Python before 3,9,5, the ipaddress library mishandles leading zero characters in the octets of an IP address string. This (in some situations) allows attackers to bypass access control that is based on IP addresses.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | pypy3 | < 7.3.8+dfsg-1 | pypy3_7.3.8+dfsg-1_all.deb |
| Debian | 11 | all | pypy3 | < 7.3.5+dfsg-2+deb11u2 | pypy3_7.3.5+dfsg-2+deb11u2_all.deb |
| Debian | 10 | all | pypy3 | <= 7.0.0+dfsg-3 | pypy3_7.0.0+dfsg-3_all.deb |
| Debian | 999 | all | pypy3 | < 7.3.8+dfsg-1 | pypy3_7.3.8+dfsg-1_all.deb |
| Debian | 13 | all | pypy3 | < 7.3.8+dfsg-1 | pypy3_7.3.8+dfsg-1_all.deb |
| Debian | 11 | all | python2.7 | < 2.7.18-8+deb11u1 | python2.7_2.7.18-8+deb11u1_all.deb |
| Debian | 10 | all | python2.7 | < 2.7.16-2+deb10u1 | python2.7_2.7.16-2+deb10u1_all.deb |
| Debian | 11 | all | python3.9 | <= 3.9.2-1 | python3.9_3.9.2-1_all.deb |
Related
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
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
0.008 Low
EPSS
Percentile
81.8%