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TI-2010-03323 Aliases CVE-2010-3493GHSA-5rjw-m4xp-g2m7

Multiple race conditions in smtpd.py in the smtpd module in Python 2.6, 2.7, 3.1, and 3.2…

Priority LOW 25CWE-362Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Medium
Impact type
—
Confidentiality · integrity · availability
None · None · Partial
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.

Summary

Multiple race conditions in smtpd.py in the smtpd module in Python 2.6, 2.7, 3.1, and 3.2 alpha allow remote attackers to cause a denial of service (daemon outage) by establishing and then immediately closing a TCP connection, leading to the accept function having an unexpected return value of None, an unexpected value of None for the address, or an ECONNABORTED, EAGAIN, or EWOULDBLOCK error, or the getpeername function having an ENOTCONN error, a related issue to CVE-2010-3492.

Why it matters now

EPSS 0.02798 86th percentileScored 2026-11-07
Fix Fixed Red Hat: 3 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:python:python:3.1:*:*:*:*:*:*:*3.1Vulnerablepython-pillow
cpe:2.3:a:python:python:3.2:alpha:*:*:*:*:*:*3.2 alphaVulnerablepython-pillow
  • cpe:2.3:a:python:python:3.1:*:*:*:*:*:*:* Versions 3.1 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.2:alpha:*:*:*:*:*:* Versions 3.2 alpha Vulnerable ·python-pillow

Remediation

Red Hat 3 advisories

  • RHSA-2011:0554 Released 2011-05-19 · Red Hat rating Moderate
    python security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Desktop (v. 6) python-2.6.6-20.el6, python-libs-2.6.6-20.el6, tkinter-2.6.6-20.el6
    • Red Hat Enterprise Linux Desktop Optional (v. 6) python-2.6.6-20.el6, python-devel-2.6.6-20.el6, python-test-2.6.6-20.el6 +1
    • Red Hat Enterprise Linux HPC Node (v. 6) python-2.6.6-20.el6, python-libs-2.6.6-20.el6
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) python-2.6.6-20.el6, python-devel-2.6.6-20.el6, python-test-2.6.6-20.el6 +2
    • Red Hat Enterprise Linux Server (v. 6) python-2.6.6-20.el6, python-devel-2.6.6-20.el6, python-docs-2.6.6-2.el6 +2
    • Red Hat Enterprise Linux Server Optional (v. 6) python-2.6.6-20.el6, python-test-2.6.6-20.el6, python-tools-2.6.6-20.el6 +1
    • Red Hat Enterprise Linux Workstation (v. 6) python-2.6.6-20.el6, python-devel-2.6.6-20.el6, python-docs-2.6.6-2.el6 +2
    • Red Hat Enterprise Linux Workstation Optional (v. 6) python-2.6.6-20.el6, python-test-2.6.6-20.el6, python-tools-2.6.6-20.el6
  • RHSA-2011:0491 Released 2011-05-05 · Red Hat rating Moderate
    python security update
    • Red Hat Enterprise Linux AS version 4 python-2.3.4-14.10.el4, python-2.3.4-14.10.el4.i386, python-2.3.4-14.10.el4.ia64 +17
    • Red Hat Enterprise Linux Desktop version 4 python-2.3.4-14.10.el4, python-2.3.4-14.10.el4.i386, python-devel-2.3.4-14.10.el4 +7
    • Red Hat Enterprise Linux ES version 4 python-2.3.4-14.10.el4, python-2.3.4-14.10.el4.i386, python-2.3.4-14.10.el4.ia64 +12
    • Red Hat Enterprise Linux WS version 4 python-2.3.4-14.10.el4, python-2.3.4-14.10.el4.i386, python-2.3.4-14.10.el4.ia64 +12
  • RHSA-2011:0492 Released 2011-05-05 · Red Hat rating Moderate
    python security update
    • Red Hat Enterprise Linux (v. 5 server) python-2.4.3-44.el5, python-2.4.3-44.el5.i386, python-2.4.3-44.el5.ia64 +17
    • Red Hat Enterprise Linux Desktop (v. 5 client) python-2.4.3-44.el5, python-2.4.3-44.el5.i386, python-libs-2.4.3-44.el5 +5
    • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) python-2.4.3-44.el5, python-devel-2.4.3-44.el5, python-devel-2.4.3-44.el5.i386

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2011:0492
Red Hat Enterprise Linux AS version 4Fixed RHSA-2011:0491
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2011:0492
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2011:0554
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2011:0554
Red Hat Enterprise Linux Desktop Workstation (v. 5 client)Fixed RHSA-2011:0492
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2011:0491
Red Hat Enterprise Linux ES version 4Fixed RHSA-2011:0491
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2011:0554
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2011:0554
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2011:0554
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2011:0554
Red Hat Enterprise Linux WS version 4Fixed RHSA-2011:0491
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2011:0554
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2011:0554

Timeline

  1. 2026-10-02 Threatist record created from CVE-2010-3493
  2. 2026-10-03 Alias added: GHSA-5rjw-m4xp-g2m7

References

Patch 3

Advisory 7

Other 9

  • TI-2016-01993 The DES and Triple DES ciphers, as used in the TLS, SSH, and IPSec protocols and other… CVSS 3.1HIGH 7.5
  • TI-2022-24108 An XML External Entity (XXE) issue was discovered in Python through 3.9.1. CVSS 3.1CRITICAL 9.8
  • TI-2022-17508 The Keccak XKCP SHA-3 reference implementation before fdc6fef has an integer overflow and… CVSS 3.1CRITICAL 9.8
  • TI-2021-02254 Python 3.x through 3.9.1 has a buffer overflow in PyCArg_repr in _ctypes/callproc.c… CVSS 3.1CRITICAL 9.8
  • TI-2007-04413 Directory traversal vulnerability in the (1) extract and (2) extractall functions in the… CVSS 3.1CRITICAL 9.8
  • TI-2014-00217 OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h does not properly… CVSS 3.1HIGH 7.4
See all 139 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences