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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.nix:def:142713
[Rus]
Version
6
Class
patch
ALTXid
341011
Language
English
Severity
Medium
Title
RHSA-2020:4641 -- python38:3.8 security, bug fix, and enhancement update
Description
PyYAML: command execution through python/object/apply constructor in FullLoader.
python: infinite loop in the tarfile module via crafted TAR archive.
PyYAML: arbitrary command execution through python/object/new when FullLoader is used.
python: wrong backtracking in urllib.request.AbstractBasicAuthHandler allows for a ReDoS.
python: DoS via inefficiency in IPv{4,6}Interface classes.
Family
unix
Platform
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 8.4
Red Hat Enterprise Linux 8.6
Red Hat Enterprise Linux 8.8
Product
python38
Reference
VENDOR: RHSA-2020:4641
VENDOR: RHSA-2020:4641
Id:
RHSA-2020:4641
Reference:
https://access.redhat.com/errata/RHSA-2020:4641
CVE: CVE-2019-20477
CVE: CVE-2019-20477
Id:
CVE-2019-20477
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20477
Comment
: PyYAML 5.1 through 5.1.2 has insufficient restrictions on the load and load_all functions because of a class deserialization issue, e.g., Popen is a class in the subprocess module. NOTE: this issue exists because of an incomplete fix for CVE-2017-18342.
CVSSv2 Score:
7.5
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSSv3 Score:
9.8
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE:
502 (Deserialization of Untrusted Data)
References:
https://www.exploit-db.com/download/47655 (MISC)
https://github.com/yaml/pyyaml/blob/master/CHANGES (MISC)
FEDORA-2020-3162499159 ()
FEDORA-2020-e84e90dc4a ()
CVE: CVE-2019-20907
CVE: CVE-2019-20907
Id:
CVE-2019-20907
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20907
Comment
: In Lib/tarfile.py in Python through 3.8.3, an attacker is able to craft a TAR archive leading to an infinite loop when opened by tarfile.open, because _proc_pax lacks header validation.
CVSSv2 Score:
5
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSSv3 Score:
7.5
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE:
835 (Loop with Unreachable Exit Condition ('Infinite Loop'))
References:
https://bugs.python.org/issue39017 (CONFIRM)
https://github.com/python/cpython/pull/21454 (CONFIRM)
USN-4428-1 (UBUNTU)
https://security.netapp.com/advisory/ntap-20200731-0002/ (CONFIRM)
GLSA-202008-01 (GENTOO)
[debian-lts-announce] 20200822 [SECURITY] [DLA 2337-1] python2.7 security update (MLIST)
openSUSE-SU-2020:1254 (SUSE)
openSUSE-SU-2020:1257 (SUSE)
openSUSE-SU-2020:1258 (SUSE)
openSUSE-SU-2020:1265 (SUSE)
[debian-lts-announce] 20201119 [SECURITY] [DLA 2456-1] python3.5 security update (MLIST)
https://www.oracle.com/security-alerts/cpujan2021.html (MISC)
[debian-lts-announce] 20230524 [SECURITY] [DLA 3432-1] python2.7 security update (MLIST)
FEDORA-2020-dfb11916cc ()
FEDORA-2020-e9251de272 ()
FEDORA-2020-c3b07cc5c9 ()
FEDORA-2020-aab24d3714 ()
FEDORA-2020-bb919e575e ()
FEDORA-2020-97d775e649 ()
FEDORA-2020-826b24c329 ()
FEDORA-2020-1ddd5273d6 ()
FEDORA-2020-87c0a0a52d ()
FEDORA-2020-efb908b6a8 ()
FEDORA-2020-d808fdd597 ()
FEDORA-2020-982b2950db ()
FEDORA-2020-c539babb0a ()
FEDORA-2020-d30881c970 ()
CVE: CVE-2020-1747
CVE: CVE-2020-1747
Id:
CVE-2020-1747
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1747
Comment
: A vulnerability was discovered in the PyYAML library in versions before 5.3.1, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. An attacker could use this flaw to execute arbitrary code on the system by abusing the python/object/new constructor.
CVSSv2 Score:
10
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
COMPLETE
Integrity impact:
COMPLETE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSSv3 Score:
9.8
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE:
20 (Improper Input Validation)
References:
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1747 (CONFIRM)
https://github.com/yaml/pyyaml/pull/386 (MISC)
openSUSE-SU-2020:0507 (SUSE)
openSUSE-SU-2020:0630 (SUSE)
N/A (N/A)
FEDORA-2020-40c35d7b37 ()
FEDORA-2020-bdb0bfa928 ()
FEDORA-2020-e9741a6a15 ()
FEDORA-2021-3342569a0f ()
FEDORA-2021-eed7193502 ()
CVE: CVE-2020-8492
CVE: CVE-2020-8492
Id:
CVE-2020-8492
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8492
Comment
: Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1 allows an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking.
CVSSv2 Score:
7.1
Access vector:
NETWORK
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:N/AC:M/Au:N/C:N/I:N/A:C
CVSSv3 Score:
6.5
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE:
400 (Uncontrolled Resource Consumption ('Resource Exhaustion'))
References:
https://github.com/python/cpython/pull/18284 (MISC)
https://python-security.readthedocs.io/vuln/urllib-basic-auth-regex.html (MISC)
https://bugs.python.org/issue39503 (MISC)
https://security.netapp.com/advisory/ntap-20200221-0001/ (CONFIRM)
openSUSE-SU-2020:0274 (SUSE)
USN-4333-1 (UBUNTU)
USN-4333-2 (UBUNTU)
GLSA-202005-09 (GENTOO)
[debian-lts-announce] 20200715 [SECURITY] [DLA 2280-1] python3.5 security update (MLIST)
[debian-lts-announce] 20230524 [SECURITY] [DLA 3432-1] python2.7 security update (MLIST)
FEDORA-2020-98e0f0f11b ()
FEDORA-2020-6a88dad4a0 ()
FEDORA-2020-8bdd3fd7a4 ()
FEDORA-2020-ea5bdbcc90 ()
[cassandra-commits] 20210816 [jira] [Created] (CASSANDRA-16857) Security vulnerability CVE-2020-8492 ()
[cassandra-commits] 20210816 [jira] [Updated] (CASSANDRA-16857) Security vulnerability CVE-2020-8492 ()
CVE: CVE-2020-14422
CVE: CVE-2020-14422
Id:
CVE-2020-14422
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14422
Comment
: Lib/ipaddress.py in Python through 3.8.3 improperly computes hash values in the IPv4Interface and IPv6Interface classes, which might allow a remote attacker to cause a denial of service if an application is affected by the performance of a dictionary containing IPv4Interface or IPv6Interface objects, and this attacker can cause many dictionary entries to be created. This is fixed in: v3.5.10, v3.5.10rc1; v3.6.12; v3.7.9; v3.8.4, v3.8.4rc1, v3.8.5, v3.8.6, v3.8.6rc1; v3.9.0, v3.9.0b4, v3.9.0b5, v3.9.0rc1, v3.9.0rc2.
CVSSv2 Score:
4.3
Access vector:
NETWORK
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSSv3 Score:
5.9
Attack vector:
NETWORK
Attack complexity:
HIGH
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE:
682 (Incorrect Calculation)
References:
https://github.com/python/cpython/pull/20956 (MISC)
https://bugs.python.org/issue41004 (MISC)
openSUSE-SU-2020:0931 (SUSE)
openSUSE-SU-2020:0940 (SUSE)
[debian-lts-announce] 20200715 [SECURITY] [DLA 2280-1] python3.5 security update (MLIST)
openSUSE-SU-2020:0989 (SUSE)
openSUSE-SU-2020:1002 (SUSE)
https://security.netapp.com/advisory/ntap-20200724-0004/ (CONFIRM)
USN-4428-1 (UBUNTU)
GLSA-202008-01 (GENTOO)
https://www.oracle.com/security-alerts/cpujan2021.html (MISC)
[debian-lts-announce] 20230515 [SECURITY] [DLA 3424-1] python-ipaddress security update (MLIST)
FEDORA-2020-b513391ca8 ()
FEDORA-2020-705c6ea5be ()
FEDORA-2020-dfb11916cc ()
FEDORA-2020-c3b07cc5c9 ()
FEDORA-2020-bb919e575e ()
FEDORA-2020-1ddd5273d6 ()
FEDORA-2020-87c0a0a52d ()
FEDORA-2020-efb908b6a8 ()
FEDORA-2020-d808fdd597 ()
FEDORA-2020-982b2950db ()
FEDORA-2020-c539babb0a ()
FEDORA-2020-d30881c970 ()
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