SB2019052234 - Red Hat Software Collections update for python27-python and python27-python-jinja2
Published: May 22, 2019
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 vulnerabilities.
1) Information disclosure (CVE-ID: CVE-2016-10745)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to information disclosure in str.format in Pallets Jinja. A remote attacker can gain unauthorized access to sensitive information and use it to escape sandbox.
2) Improper input validation (CVE-ID: CVE-2018-1060)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause DoS condition on he target system.
The weakness exists due to the way catastrophic backtracking was implemented in apop() method in pop3lib. A remote attacker can cause the service to crash.
3) Improper input validation (CVE-ID: CVE-2018-1061)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause DoS condition on he target system.
The weakness exists due to the way catastrophic backtracking was implemented in python's difflib.IS_LINE_JUNK method difflib. A remote attacker can cause the service to crash.
4) XXE attack (CVE-ID: CVE-2018-14647)
CWE-ID: CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to conduct XXE-attack.
The vulnerability exists due to improper handling of XML External Entities (XXEs) when parsing an XML file. A remote attacker can trick the victim into open an XML file that submits malicious input, trigger pathological hash collisions in Expat's internal data structures, consume large amounts CPU and RAM, and cause a denial of service (DoS) condition.
5) CRLF injection (CVE-ID: CVE-2019-9740)
CWE-ID: CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Green
The vulnerability allows a remote attacker to perform CRLF injection attacks.
The vulnerability exists within urllib2 implementation for Python 2.x and urllib3 implementation for Python 3.x when processing the path component of a URL after the "?" character within the urllib.request.urlopen() call. A remote attacker with ability to control URL, passed to the application, can use CRLF sequences to split the HTTP request and inject arbitrary HTTP headers into request, made by the application.
6) CRLF injection (CVE-ID: CVE-2019-9947)
CWE-ID: CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Green
The vulnerability allows a remote attacker to perform CRLF injection attacks.
The vulnerability exists within urllib2 implementation for Python 2.x and urllib3 implementation for Python 3.x when processing the path component of a URL that lacks the "?" character within the urllib.request.urlopen() call. A remote attacker with ability to control URL, passed to the application, can use CRLF sequences to split the HTTP request and inject arbitrary HTTP headers into request, made by the application.
Remediation
Install update from vendor's website.