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Vulnerability Details : CVE-2021-3177

Python 3.x through 3.9.1 has a buffer overflow in PyCArg_repr in _ctypes/callproc.c, which may lead to remote code execution in certain Python applications that accept floating-point numbers as untrusted input, as demonstrated by a 1e300 argument to c_double.from_param. This occurs because sprintf is used unsafely.
Publish Date : 2021-01-19 Last Update Date : 2022-07-25
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Execute CodeOverflow
CWE ID 120

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2021:1633: python3 security update (Moderate) oval:com.redhat.rhsa:def:20211633 unix
RHSA-2021:1761: python27:2.7 security and bug fix update (Moderate) oval:com.redhat.rhsa:def:20211761 unix
RHSA-2021:1879: python38:3.8 security update (Moderate) oval:com.redhat.rhsa:def:20211879 unix
RHSA-2022:5235: python security update (Moderate) oval:com.redhat.rhsa:def:20225235 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2021-3177

# Product Type Vendor Product Version Update Edition Language
1 OS Debian Debian Linux 9.0 * * * Version Details Vulnerabilities
2 OS Fedoraproject Fedora 32 * * * Version Details Vulnerabilities
3 OS Fedoraproject Fedora 33 * * * Version Details Vulnerabilities
4 Application Netapp Active Iq Unified Manager - * * * Version Details Vulnerabilities
5 Application Netapp Active Iq Unified Manager - * * * Version Details Vulnerabilities
6 Application Netapp Active Iq Unified Manager - * * * Version Details Vulnerabilities
7 Application Netapp Ontap Select Deploy Administration Utility - * * * Version Details Vulnerabilities
8 Application Oracle Communications Offline Mediation Controller * * * Version Details Vulnerabilities
9 Application Oracle Communications Pricing Design Center * * * Version Details Vulnerabilities
10 Application Oracle Enterprise Manager Ops Center * * * Version Details Vulnerabilities
11 Application Oracle Zfs Storage Appliance Kit 8.8 * * * Version Details Vulnerabilities
12 Application Python Python * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Debian Debian Linux 1
Fedoraproject Fedora 2
Netapp Active Iq Unified Manager 3
Netapp Ontap Select Deploy Administration Utility 1
Oracle Communications Offline Mediation Controller 1
Oracle Communications Pricing Design Center 1
Oracle Enterprise Manager Ops Center 1
Oracle Zfs Storage Appliance Kit 1
Python Python 1

- References For CVE-2021-3177[email protected]/message/NODWHDIFBQE5RU5PUWUVE47JOT5VCMJ2/
FEDORA FEDORA-2021-f4fd9372c7
MLIST [debian-lts-announce] 20220212 [SECURITY] [DLA 2919-1] python2.7 security update CONFIRM[email protected]/message/NQPARTLNSFQVMMQHPNBFOCOZOO3TMQNA/
FEDORA FEDORA-2021-cc3ff94cfc[email protected]/message/MGSV6BJQLRQ6RKVUXK7JGU7TP4QFGQXC/
FEDORA FEDORA-2021-faf88b9499
GENTOO GLSA-202101-18[email protected]/message/Z7GZV74KM72O2PEJN2C4XP3V5Q5MZUOO/
FEDORA FEDORA-2021-e3a5a74610[email protected]/message/CCFZMVRQUKCBQIG5F2CBVADK63NFSE4A/
FEDORA FEDORA-2021-ced31f3f0c[email protected]/message/BRHOCQYX3QLDGDQGTWQAUUT2GGIZCZUO/
FEDORA FEDORA-2021-42ba9feb47[email protected]/message/V6XJAULOS5JVB2L67NCKKMJ5NTKZJBSD/
FEDORA FEDORA-2021-851c6e4e2d[email protected]/message/NXSMBHES3ANXXS2RSO5G6Q24BR4B2PWK/
FEDORA FEDORA-2021-076a2dccba[email protected]/message/FONHJIOZOFD7CD35KZL6SVBUTMBPGZGA/
FEDORA FEDORA-2021-907f3bacae
MLIST [debian-lts-announce] 20210405 [SECURITY] [DLA 2619-1] python3.5 security update[email protected]/message/FPE7SMXYUIWPOIZV4DQYXODRXMFX3C5E/
FEDORA FEDORA-2021-d5cde50865[email protected]/message/Y4KSYYWMGAKOA2JVCQA422OINT6CKQ7O/
FEDORA FEDORA-2021-17668e344a[email protected]/message/HCQTCSP6SCVIYNIRUJC5X7YBVUHPLSC4/
FEDORA FEDORA-2021-7547ad987f[email protected]
MLIST [mina-dev] 20210225 [jira] [Created] (FTPSERVER-500) Security vulnerability in common/lib/log4j-1.2.17.jar[email protected]/message/MP572OLHMS7MZO4KUPSCIMSZIA5IZZ62/
FEDORA FEDORA-2021-3352c1c802[email protected]/message/YDTZVGSXQ7HR7OCGSUHTRNTMBG43OMKU/
FEDORA FEDORA-2021-66547ff92d

- Metasploit Modules Related To CVE-2021-3177

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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