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
9.4 High
AI Score
Confidence
High
0.038 Low
EPSS
Percentile
92.0%
Debian LTS Advisory DLA-2919-1 [email protected]
https://www.debian.org/lts/security/ Anton Gladky
February 12, 2022 https://wiki.debian.org/LTS
Package : python2.7
Version : 2.7.13-2+deb9u6
CVE ID : CVE-2021-3177 CVE-2021-4189
Two issues have been discovered in python2.7:
CVE-2021-3177
Python has a buffer overflow in PyCArg_repr in _ctypes/callproc.c, which may
lead to remote code execution in certain Python applications that accept
floating-point numbers as untrusted input.
CVE-2021-4189
A flaw was found in Python, specifically in the FTP (File Transfer Protocol)
client library when using it in PASV (passive) mode. The flaw lies in how
the FTP client trusts the host from PASV response by default. An attacker
could use this flaw to setup a malicious FTP server that can trick FTP
clients into connecting back to a given IP address and port. This could lead
to FTP client scanning ports which otherwise would not have been possible.
.
Instead of using the returned address, ftplib now uses the IP address we're
already connected to. For the rare user who wants an old behavior, set a
`trust_server_pasv_ipv4_address` attribute on your `ftplib.FTP` instance to
True.
For Debian 9 stretch, these problems have been fixed in version
2.7.13-2+deb9u6.
We recommend that you upgrade your python2.7 packages.
For the detailed security status of python2.7 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/python2.7
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 10 | arm64 | python3.7-dbg | < 3.7.3-2+deb10u5 | python3.7-dbg_3.7.3-2+deb10u5_arm64.deb |
Debian | 10 | i386 | python2.7 | < 2.7.16-2+deb10u2 | python2.7_2.7.16-2+deb10u2_i386.deb |
Debian | 10 | all | libpython2.7-testsuite | < 2.7.16-2+deb10u2 | libpython2.7-testsuite_2.7.16-2+deb10u2_all.deb |
Debian | 10 | arm64 | libpython2.7-stdlib | < 2.7.16-2+deb10u2 | libpython2.7-stdlib_2.7.16-2+deb10u2_arm64.deb |
Debian | 9 | arm64 | libpython2.7-minimal | < 2.7.13-2+deb9u6 | libpython2.7-minimal_2.7.13-2+deb9u6_arm64.deb |
Debian | 9 | armhf | libpython2.7 | < 2.7.13-2+deb9u6 | libpython2.7_2.7.13-2+deb9u6_armhf.deb |
Debian | 10 | armhf | python3.7-dbg | < 3.7.3-2+deb10u5 | python3.7-dbg_3.7.3-2+deb10u5_armhf.deb |
Debian | 9 | armhf | python2.7-minimal | < 2.7.13-2+deb9u6 | python2.7-minimal_2.7.13-2+deb9u6_armhf.deb |
Debian | 10 | armhf | libpython3.7-dbg | < 3.7.3-2+deb10u5 | libpython3.7-dbg_3.7.3-2+deb10u5_armhf.deb |
Debian | 10 | armhf | python3.7-minimal | < 3.7.3-2+deb10u5 | python3.7-minimal_3.7.3-2+deb10u5_armhf.deb |
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
9.4 High
AI Score
Confidence
High
0.038 Low
EPSS
Percentile
92.0%