python: SimpleXMLRPCServer CPU usage DoS via malformed XML-RPC request
Published Oct 5, 2012
5.0
MEDIUMCVSS 2.0
EPSS 5.40%
Description
SimpleXMLRPCServer.py in SimpleXMLRPCServer in Python before 2.6.8, 2.7.x before 2.7.3, 3.x before 3.1.5, and 3.2.x before 3.2.3 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via an XML-RPC POST request that contains a smaller amount of data than specified by the Content-Length header.
Affected products
No data.
Configuration 1
- ≤ 2.6.7
- 0.9.0
- 0.9.1
- 1.2
- 1.3
- 1.5.2
- 1.6
- 1.6.1
- 2.0
- 2.0.1
- 2.1
- 2.1.1
- 2.1.2
- 2.1.3
- 2.2
- 2.2.1
- 2.2.2
- 2.2.3
- 2.3.1
- 2.3.2
- 2.3.3
- 2.3.4
- 2.3.5
- 2.3.7
- 2.4.1
- 2.4.2
- 2.4.3
- 2.4.4
- 2.4.6
- 2.5.1
- 2.5.2
- 2.5.3
- 2.5.4
- 2.5.6
- 2.5.150
- 2.6.1
- 2.6.2
- 2.6.3
- 2.6.4
- 2.6.5
- 2.6.6
- 2.6.2150
- 2.6.6150
Configuration 2
Configuration 3
No data.
Red Hat Enterprise Linux 6
python-0:2.6.6-29.el6_2.2
Fixed · RHSA-2012:0744
Red Hat Enterprise Linux 4
python
Not affected
Red Hat Enterprise Linux 5
python
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | python-0:2.6.6-29.el6_2.2 | Fixed | RHSA-2012:0744 |
| Red Hat Enterprise Linux 4 | python | Not affected | n/a |
| Red Hat Enterprise Linux 5 | python | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.40% (0.05402) | 92.43th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.62% (0.05620) | 91.91th | v5 (v2026.06.15) |
| Nov 18, 2025 | 3.75% (0.03747) | 86.86th | v4 (v2025.03.14) |
| May 15, 2025 | 5.08% (0.05075) | 89.22th | v4 (v2025.03.14) |
| Mar 30, 2025 | 6.15% (0.06153) | 89.88th | v4 (v2025.03.14) |
| Mar 29, 2025 | 11.97% (0.11972) | 89.58th | v4 (v2025.03.14) |
| Mar 17, 2025 | 6.15% (0.06153) | 90.12th | v4 (v2025.03.14) |
| Dec 17, 2024 | 24.52% (0.24523) | 96.64th | v3 (v2023.03.01) |
| Mar 7, 2023 | 15.99% (0.15990) | 95.02th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.36% (0.04358) | 88.02th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.36% (0.04358) | 86.83th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.36% (0.04358) | 70.59th | v2 (v2022.01.01) |
References (24)
- http://bugs.python.org/issue14001 x_refsource_CONFIRMExploit
- http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html vendor-advisoryx_refsource_APPLE
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html vendor-advisoryx_refsource_SUSE
- http://python.org/download/releases/2.6.8/ x_refsource_CONFIRMPatchVendor Advisory
- http://python.org/download/releases/2.7.3/ x_refsource_CONFIRMPatchVendor Advisory
- http://python.org/download/releases/3.1.5/ x_refsource_CONFIRMPatchVendor Advisory
- http://python.org/download/releases/3.2.3/ x_refsource_CONFIRMPatchVendor Advisory
- http://secunia.com/advisories/50858 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/51024 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/51040 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/51087 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/51089 third-party-advisoryx_refsource_SECUNIA
- http://www.openwall.com/lists/oss-security/2012/02/13/4 mailing-listx_refsource_MLIST
- http://www.securitytracker.com/id?1026689 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-1592-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1596-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1613-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1613-2 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1615-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1616-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2012-0845 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=789790 x_refsource_CONFIRMIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2012-0845
- https://www.cve.org/CVERecord?id=CVE-2012-0845
Change history (0)
No recorded changes yet.