Description
Buffer overflow in the socket.recvfrom_into function in Modules/socketmodule.c in Python 2.5 before 2.7.7, 3.x before 3.3.4, and 3.4.x before 3.4rc1 allows remote attackers to execute arbitrary code via a crafted string.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 11 | python2.7 | 2.7.6-6 | — |
| Debian 7 | python2.7 | 2.7.3-6+deb7u2 | DSA-2880-1 |
| Debian 6.0 | python2.6 | 2.6.6-8+deb6u1 | DLA-25-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | python +5 | 2.6.6-64.el6 | RHSA-2015:1330 |
| RHEL 2 | python27 +2 | 1.1-17.el6 | RHSA-2015:1064 |
| RHEL 2 | python27-python +6 | 2.7.8-3.el6 | RHSA-2015:1064 |
| RHEL 2 | python27-python-pip | 1.5.6-5.el6 | RHSA-2015:1064 |
| RHEL 2 | python27-python-setuptools | 0.9.8-3.el6 | RHSA-2015:1064 |
| RHEL 2 | python27-python-simplejson | 3.2.0-2.el6 | RHSA-2015:1064 |
| RHEL 2 | python27-python-wheel | 0.24.0-2.el6 | RHSA-2015:1064 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | python | 2.7.17-7.32.2 | SUSE-SU-2020:0234-1 |
| SLES 15 SP1 | python-base | 2.7.17-7.32.1 | SUSE-SU-2020:0234-1 |
| SLES 15 | python | 2.7.17-7.32.2 | SUSE-SU-2020:0234-1 |
| SLES 15 | python-base | 2.7.17-7.32.1 | SUSE-SU-2020:0234-1 |
| SLES 2 | python | 2.7.17-7.32.2 | SUSE-SU-2020:0234-1 |
| SLES 2 | python-base | 2.7.17-7.32.1 | SUSE-SU-2020:0234-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | python | 2.7.18-8.1 | openSUSE-SU-2024:11202-1 |
| openSUSE Tumbleweed | python-base | 2.7.12-1.4 | openSUSE-SU-2024:10536-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | python27 +2 | 1.1-20.el7 | ELSA-2015-1064 |
| Oracle Linux 7 | python27-python +6 | 2.7.8-3.el7 | ELSA-2015-1064 |
| Oracle Linux 7 | python27-python-pip | 1.5.6-5.el7 | ELSA-2015-1064 |
| Oracle Linux 7 | python27-python-setuptools | 0.9.8-5.el7 | ELSA-2015-1064 |
| Oracle Linux 7 | python27-python-simplejson | 3.2.0-3.el7 | ELSA-2015-1064 |
| Oracle Linux 7 | python27-python-wheel | 0.24.0-2.el7 | ELSA-2015-1064 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Python - 'socket.recvfrom_into()' Remote Buffer Overflow EDB-31875 · remote · Feb 24, 2014
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 9
- RHSA-2015:1330 Red Hat Security Advisory: python security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2015:1064 Red Hat Security Advisory: python27 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- DLA-25-1 python2.6 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2880-1 python2.7 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10536-1 libpython2_7-1_0-2.7.12-1.4 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2025-2521 Python: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 9, 2025
- openSUSE-SU-2024:11202-1 python-2.7.18-8.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
- SUSE-SU-2020:0234-1 Security update for python SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2015-1064 Moderate: python27 security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Feb 4, 2016
References
- http://hg.python.org/cpython/rev/87673659d8f7
- openSUSE-SU-2014:0518 vendor-advisory
- openSUSE-SU-2014:0597 vendor-advisory
- RHSA-2015:1064 vendor-advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- http://pastebin.com/raw.php?i=GHXSmNEg
- http://bugs.python.org/issue20246
- DSA-2880 vendor-advisory
- GLSA-201503-10 vendor-advisory
- 65379 vdb-entry
- [oss-security] 20140212 Re: CVE request? buffer overflow in socket.recvfrom_into mailing-list
- APPLE-SA-2015-08-13-2 vendor-advisory
- RHSA-2015:1330 vendor-advisory
- 31875 exploit
- https://www.trustedsec.com/february-2014/python-remote-code-execution-socket-recvfrom_into/
- https://support.apple.com/kb/HT205031
- http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
- USN-2125-1 vendor-advisory
- 1029831 vdb-entry