Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2021-3177: A flaw was found in python. A stack-based buffer overflow was discovered in the ctypes module provided within Python. Applications that use ctypes without carefully validating the input passed to it may be vulnerable to this flaw, which would allow an attacker to overflow a buffer on the stack and crash the application. The highest threat from this vulnerability is to system availability. 1918168: CVE-2021-3177 python: stack-based buffer overflow in PyCArg_repr in _ctypes/callproc.c
Fixed packages 16
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | python | 0:2.7.18-1.amzn2.0.3 |
| Amazon Linux · 2 | python-debug | 0:2.7.18-1.amzn2.0.3 |
| Amazon Linux · 2 | python-debuginfo | 0:2.7.18-1.amzn2.0.3 |
| Amazon Linux · 2 | python-devel | 0:2.7.18-1.amzn2.0.3 |
| Amazon Linux · 2 | python-libs | 0:2.7.18-1.amzn2.0.3 |
| Amazon Linux · 2 | python-test | 0:2.7.18-1.amzn2.0.3 |
| Amazon Linux · 2 | python-tools | 0:2.7.18-1.amzn2.0.3 |
| Amazon Linux · 2 | python3 | 0:3.7.9-1.amzn2.0.2 |
| Amazon Linux · 2 | python3-debug | 0:3.7.9-1.amzn2.0.2 |
| Amazon Linux · 2 | python3-debuginfo | 0:3.7.9-1.amzn2.0.2 |
| Amazon Linux · 2 | python3-devel | 0:3.7.9-1.amzn2.0.2 |
| Amazon Linux · 2 | python3-libs | 0:3.7.9-1.amzn2.0.2 |
| Amazon Linux · 2 | python3-test | 0:3.7.9-1.amzn2.0.2 |
| Amazon Linux · 2 | python3-tkinter | 0:3.7.9-1.amzn2.0.2 |
| Amazon Linux · 2 | python3-tools | 0:3.7.9-1.amzn2.0.2 |
| Amazon Linux · 2 | tkinter | 0:2.7.18-1.amzn2.0.3 |
Vulnerabilities 1
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Critical 9.8CVE-2021-3177 EPSS 24%
Python 3.x through 3.9.1 has a buffer overflow in PyCArg_repr in _ctypes/callproc.c, which may lead to remote code exec…
References
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web
https://alas.aws.amazon.com/cve/html/CVE-2021-3177.html