National Vulnerability Database

National Vulnerability Database

National Vulnerability
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Search Parameters:
  • Contains Software Flaws (CVE)
  • CPE Product Version: cpe:/a:python:python:2.7.15:rc1
There are 18 matching records.
Vuln ID Summary CVSS Severity
CVE-2013-1753

The gzip_decode function in the xmlrpc client library in Python 3.4 and earlier allows remote attackers to cause a denial of service (memory consumption) via a crafted HTTP request.

Published: March 11, 2020; 01:15:12 PM -04:00
V3.1: 7.5 HIGH
    V2: 5.0 MEDIUM
CVE-2019-9674

Lib/zipfile.py in Python through 3.7.2 allows remote attackers to cause a denial of service (resource consumption) via a ZIP bomb.

Published: February 04, 2020; 10:15:11 AM -05:00
V3.1: 7.5 HIGH
    V2: 5.0 MEDIUM
CVE-2020-8492

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.

Published: January 30, 2020; 02:15:12 PM -05:00
V3.1: 6.5 MEDIUM
    V2: 7.1 HIGH
CVE-2019-18348

An issue was discovered in urllib2 in Python 2.x through 2.7.17 and urllib in Python 3.x through 3.8.0. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with \r\n (specifically in the host component of a URL) followed by an HTTP header. This is similar to the CVE-2019-9740 query string issue and the CVE-2019-9947 path string issue. (This is not exploitable when glibc has CVE-2016-10739 fixed.)

Published: October 23, 2019; 01:15:12 PM -04:00
V3.1: 6.1 MEDIUM
    V2: 4.3 MEDIUM
CVE-2019-16935

The documentation XML-RPC server in Python through 2.7.16, 3.x through 3.6.9, and 3.7.x through 3.7.4 has XSS via the server_title field. This occurs in Lib/DocXMLRPCServer.py in Python 2.x, and in Lib/xmlrpc/server.py in Python 3.x. If set_server_title is called with untrusted input, arbitrary JavaScript can be delivered to clients that visit the http URL for this server.

Published: September 27, 2019; 10:15:10 PM -04:00
V3.1: 6.1 MEDIUM
    V2: 4.3 MEDIUM
CVE-2019-16056

An issue was discovered in Python through 2.7.16, 3.x through 3.5.7, 3.6.x through 3.6.9, and 3.7.x through 3.7.4. The email module wrongly parses email addresses that contain multiple @ characters. An application that uses the email module and implements some kind of checks on the From/To headers of a message could be tricked into accepting an email address that should be denied. An attack may be the same as in CVE-2019-11340; however, this CVE applies to Python more generally.

Published: September 06, 2019; 02:15:15 PM -04:00
V3.1: 7.5 HIGH
    V2: 5.0 MEDIUM
CVE-2018-20852

http.cookiejar.DefaultPolicy.domain_return_ok in Lib/http/cookiejar.py in Python before 3.7.3 does not correctly validate the domain: it can be tricked into sending existing cookies to the wrong server. An attacker may abuse this flaw by using a server with a hostname that has another valid hostname as a suffix (e.g., pythonicexample.com to steal cookies for example.com). When a program uses http.cookiejar.DefaultPolicy and tries to do an HTTP connection to an attacker-controlled server, existing cookies can be leaked to the attacker. This affects 2.x through 2.7.16, 3.x before 3.4.10, 3.5.x before 3.5.7, 3.6.x before 3.6.9, and 3.7.x before 3.7.3.

Published: July 13, 2019; 05:15:10 PM -04:00
V3.0: 5.3 MEDIUM
    V2: 5.0 MEDIUM
CVE-2019-13404

** DISPUTED ** The MSI installer for Python through 2.7.16 on Windows defaults to the C:\Python27 directory, which makes it easier for local users to deploy Trojan horse code. (This also affects old 3.x releases before 3.5.) NOTE: the vendor's position is that it is the user's responsibility to ensure C:\Python27 access control or choose a different directory, because backwards compatibility requires that C:\Python27 remain the default for 2.7.x.

Published: July 07, 2019; 09:15:10 PM -04:00
V3.0: 7.8 HIGH
    V2: 9.3 HIGH
CVE-2019-9948

urllib in Python 2.x through 2.7.16 supports the local_file: scheme, which makes it easier for remote attackers to bypass protection mechanisms that blacklist file: URIs, as demonstrated by triggering a urllib.urlopen('local_file:///etc/passwd') call.

Published: March 23, 2019; 02:29:02 PM -04:00
V3.0: 9.1 CRITICAL
    V2: 6.4 MEDIUM
CVE-2019-9947

An issue was discovered in urllib2 in Python 2.x through 2.7.16 and urllib in Python 3.x through 3.7.3. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with \r\n (specifically in the path component of a URL that lacks a ? character) followed by an HTTP header or a Redis command. This is similar to the CVE-2019-9740 query string issue.

Published: March 23, 2019; 02:29:02 PM -04:00
V3.0: 6.1 MEDIUM
    V2: 4.3 MEDIUM
CVE-2019-9740

An issue was discovered in urllib2 in Python 2.x through 2.7.16 and urllib in Python 3.x through 3.7.3. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with \r\n (specifically in the query string after a ? character) followed by an HTTP header or a Redis command.

Published: March 12, 2019; 11:29:00 PM -04:00
V3.0: 6.1 MEDIUM
    V2: 4.3 MEDIUM
CVE-2019-9636

Python 2.7.x through 2.7.16 and 3.x through 3.7.2 is affected by: Improper Handling of Unicode Encoding (with an incorrect netloc) during NFKC normalization. The impact is: Information disclosure (credentials, cookies, etc. that are cached against a given hostname). The components are: urllib.parse.urlsplit, urllib.parse.urlparse. The attack vector is: A specially crafted URL could be incorrectly parsed to locate cookies or authentication data and send that information to a different host than when parsed correctly.

Published: March 08, 2019; 04:29:00 PM -05:00
V3.0: 9.8 CRITICAL
    V2: 5.0 MEDIUM
CVE-2018-14647

Python's elementtree C accelerator failed to initialise Expat's hash salt during initialization. This could make it easy to conduct denial of service attacks against Expat by constructing an XML document that would cause pathological hash collisions in Expat's internal data structures, consuming large amounts CPU and RAM. Python 3.8, 3.7, 3.6, 3.5, 3.4, 2.7 are believed to be vulnerable.

Published: September 24, 2018; 08:29:00 PM -04:00
V3.0: 7.5 HIGH
    V2: 5.0 MEDIUM
CVE-2017-18207

** DISPUTED ** The Wave_read._read_fmt_chunk function in Lib/wave.py in Python through 3.6.4 does not ensure a nonzero channel value, which allows attackers to cause a denial of service (divide-by-zero and exception) via a crafted wav format audio file. NOTE: the vendor disputes this issue because Python applications "need to be prepared to handle a wide variety of exceptions."

Published: March 01, 2018; 12:29:00 AM -05:00
V3.0: 6.5 MEDIUM
    V2: 4.3 MEDIUM
CVE-2017-17522

** DISPUTED ** Lib/webbrowser.py in Python through 3.6.3 does not validate strings before launching the program specified by the BROWSER environment variable, which might allow remote attackers to conduct argument-injection attacks via a crafted URL. NOTE: a software maintainer indicates that exploitation is impossible because the code relies on subprocess.Popen and the default shell=False setting.

Published: December 14, 2017; 11:29:00 AM -05:00
V3.0: 8.8 HIGH
    V2: 6.8 MEDIUM
CVE-2015-5652

Untrusted search path vulnerability in python.exe in Python through 3.5.0 on Windows allows local users to gain privileges via a Trojan horse readline.pyd file in the current working directory. NOTE: the vendor says "It was determined that this is a longtime behavior of Python that cannot really be altered at this point."

Published: October 05, 2015; 09:59:27 PM -04:00
    V2: 7.2 HIGH
CVE-2009-3720

The updatePosition function in lib/xmltok_impl.c in libexpat in Expat 2.0.1, as used in Python, PyXML, w3c-libwww, and other software, allows context-dependent attackers to cause a denial of service (application crash) via an XML document with crafted UTF-8 sequences that trigger a buffer over-read, a different vulnerability than CVE-2009-2625.

Published: November 03, 2009; 11:30:12 AM -05:00
    V2: 5.0 MEDIUM
CVE-2009-2940

The pygresql module 3.8.1 and 4.0 for Python does not properly support the PQescapeStringConn function, which might allow remote attackers to leverage escaping issues involving multibyte character encodings.

Published: October 22, 2009; 12:30:00 PM -04:00
    V2: 7.5 HIGH