Python: Security Vulnerabilities
The CGIHTTPServer module in Python 2.7.5 and 3.3.4 does not properly handle URLs in which URL encoding is used for path separators, which allows remote attackers to read script source code or conduct directory traversal attacks and execute unintended code via a crafted character sequence, as demonstrated by a %2f separator.
CVSS Score
9.8
EPSS Score
0.06
Published
2020-02-20
Lib/zipfile.py in Python through 3.7.2 allows remote attackers to cause a denial of service (resource consumption) via a ZIP bomb.
CVSS Score
7.5
EPSS Score
0.012
Published
2020-02-04
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.
CVSS Score
6.5
EPSS Score
0.036
Published
2020-01-30
In Python (CPython) 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1, an insecure dependency load upon launch on Windows 7 may result in an attacker's copy of api-ms-win-core-path-l1-1-0.dll being loaded and used instead of the system's copy. Windows 8 and later are unaffected.
CVSS Score
5.5
EPSS Score
0.003
Published
2020-01-28
The py-bcrypt module before 0.3 for Python does not properly handle concurrent memory access, which allows attackers to bypass authentication via multiple authentication requests, which trigger the password hash to be overwritten.
CVSS Score
7.5
EPSS Score
0.003
Published
2020-01-28
There is a DoS vulnerability in Pillow before 6.2.2 caused by FpxImagePlugin.py calling the range function on an unvalidated 32-bit integer if the number of bands is large. On Windows running 32-bit Python, this results in an OverflowError or MemoryError due to the 2 GB limit. However, on Linux running 64-bit Python this results in the process being terminated by the OOM killer.
CVSS Score
7.5
EPSS Score
0.01
Published
2020-01-05
libImaging/TiffDecode.c in Pillow before 6.2.2 has a TIFF decoding integer overflow, related to realloc.
CVSS Score
8.8
EPSS Score
0.006
Published
2020-01-03
libImaging/SgiRleDecode.c in Pillow before 6.2.2 has an SGI buffer overflow.
CVSS Score
9.8
EPSS Score
0.013
Published
2020-01-03
libImaging/PcxDecode.c in Pillow before 6.2.2 has a PCX P mode buffer overflow.
CVSS Score
9.8
EPSS Score
0.017
Published
2020-01-03
libImaging/FliDecode.c in Pillow before 6.2.2 has an FLI buffer overflow.
CVSS Score
7.1
EPSS Score
0.006
Published
2020-01-03