Multiple integer overflows in Python 2.2.3 through 2.5.1, and 2.6, allow context-dependent attackers to have an unknown impact via a large i
Noroxi assessment
Priority: Plan (action score 41/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 2.9% (FIRST EPSS); higher than 86.9% of all records.
- No special conditions are required; it is repeatable.
- Fixed version: python (Red Hat:enterprise_linux:3::as) 0:2.2.3-6.11; python-debuginfo (Red Hat:enterprise_linux:3::as) 0:2.2.3-6.11; python-devel (Red Hat:enterprise_linux:3::as) 0:2.2.3-6.11.
Add it to your regular patch cycle. Upgrade to python (Red Hat:enterprise_linux:3::as) 0:2.2.3-6.11; python-debuginfo (Red Hat:enterprise_linux:3::as) 0:2.2.3-6.11; python-devel (Red Hat:enterprise_linux:3::as) 0:2.2.3-6.11 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Multiple integer overflows in Python 2.2.3 through 2.5.1, and 2.6, allow context-dependent attackers to have an unknown impact via a large integer value in the tabsize argument to the expandtabs method, as implemented by (1) the string_expandtabs function in Objects/stringobject.c and (2) the unicode_expandtabs function in Objects/unicodeobject.c. NOTE: this vulnerability reportedly exists because of an incomplete fix for CVE-2008-2315.
- Published
- Nov 10, 2008
- Updated
- Jun 16, 2026
- EPSS
- 3.0% · 87th percentile
- CWE
- CWE-189
Report tools
Action score
41
Plan
Add it to your regular patch cycle.
- CVSS
- 40 / 40 · 10.0 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 3.0%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| python | python | cpe:2.3:a:python:python |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- python python2.2.3
- python python2.3.7
- python python2.4.6
- python python2.5.1
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Red Hat:enterprise_linux:3::as | python | before 0:2.2.3-6.11 | 0:2.2.3-6.11 |
| Red Hat:enterprise_linux:3::as | python-debuginfo | before 0:2.2.3-6.11 | 0:2.2.3-6.11 |
| Red Hat:enterprise_linux:3::as | python-devel | before 0:2.2.3-6.11 | 0:2.2.3-6.11 |
| Red Hat:enterprise_linux:3::as | python-tools | before 0:2.2.3-6.11 | 0:2.2.3-6.11 |
| Red Hat:enterprise_linux:3::as | tkinter | before 0:2.2.3-6.11 | 0:2.2.3-6.11 |
| Red Hat:enterprise_linux:4::as | python | before 0:2.3.4-14.7.el4_8.2 | 0:2.3.4-14.7.el4_8.2 |
| Red Hat:enterprise_linux:4::as | python-debuginfo | before 0:2.3.4-14.7.el4_8.2 | 0:2.3.4-14.7.el4_8.2 |
| Red Hat:enterprise_linux:4::as | python-devel | before 0:2.3.4-14.7.el4_8.2 | 0:2.3.4-14.7.el4_8.2 |
| Red Hat:enterprise_linux:4::as | python-docs | before 0:2.3.4-14.7.el4_8.2 | 0:2.3.4-14.7.el4_8.2 |
| Red Hat:enterprise_linux:4::as | python-tools | before 0:2.3.4-14.7.el4_8.2 | 0:2.3.4-14.7.el4_8.2 |
| Red Hat:enterprise_linux:4::as | tkinter | before 0:2.3.4-14.7.el4_8.2 | 0:2.3.4-14.7.el4_8.2 |
| Red Hat:enterprise_linux:5::client | python-tools | before 0:2.4.3-24.el5_3.6 | 0:2.4.3-24.el5_3.6 |
| Red Hat:enterprise_linux:5::client | tkinter | before 0:2.4.3-24.el5_3.6 | 0:2.4.3-24.el5_3.6 |
| Red Hat:enterprise_linux:5::client_workstation | python | before 0:2.4.3-24.el5_3.6 | 0:2.4.3-24.el5_3.6 |
| Red Hat:enterprise_linux:5::client_workstation | python-debuginfo | before 0:2.4.3-24.el5_3.6 | 0:2.4.3-24.el5_3.6 |
| Red Hat:enterprise_linux:5::client_workstation | python-devel | before 0:2.4.3-24.el5_3.6 | 0:2.4.3-24.el5_3.6 |
Same product
python: all recordsOther highest-scoring records for the same primary product.
- CVE-2016-5636Integer overflow in the get_data function in zipimport.c in CPython (aka Python) before 2.7.12, 3.x before 3.4.5, and 3.5.x before 3.5.2 all47Plan
- CVE-2007-4559Directory traversal vulnerability in the (1) extract and (2) extractall functions in the tarfile module in Python allows user-assisted remot47Plan
- CVE-2021-3177Python 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 Pyth46Plan
- CVE-2014-4650The CGIHTTPServer module in Python 2.7.5 and 3.3.4 does not properly handle URLs in which URL encoding is used for path separators, which al46Plan
- CVE-2018-1000802Python Software Foundation Python (CPython) version 2.7 contains a CWE-77: Improper Neutralization of Special Elements used in a Command ('C45Plan
- CVE-2020-27619In Python 3 through 3.9.0, the Lib/test/multibytecodec_support.py CJK codec tests call eval() on content retrieved via HTTP.42Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| red hat:python | 0:2.4.3-24.el5_3.6 · Red Hat:enterprise_linux:5::client_workstation | Package registry (OSV) |
| red hat:python-debuginfo | 0:2.4.3-24.el5_3.6 · Red Hat:enterprise_linux:5::client_workstation | Package registry (OSV) |
| red hat:python-devel | 0:2.4.3-24.el5_3.6 · Red Hat:enterprise_linux:5::client_workstation | Package registry (OSV) |
| red hat:python-docs | 0:2.3.4-14.7.el4_8.2 · Red Hat:enterprise_linux:4::as | Package registry (OSV) |
| red hat:python-tools | 0:2.4.3-24.el5_3.6 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:tkinter | 0:2.4.3-24.el5_3.6 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- C · data can be read
- Integrity
- C · data or configuration can be modified
- Availability
- C · the service can be disrupted
- Attack complexity
- Low
- Confidentiality impact
- C
- Integrity impact
- C
- Availability impact
- C
Weakness class (CWE)
CWE-189 · Numeric ErrorsCVSS vector
AV:N/AC:L/Au:N/C:C/I:C/A:C
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (17 more)Show less
- scary.beasts.org/security/CESA-2008-008.html
- secunia.com/advisories/33937
- secunia.com/advisories/35750
- secunia.com/advisories/37471
- security.gentoo.org/glsa/glsa-200907-16.xml
- support.apple.com/kb/HT3438
- svn.python.org/view/python/trunk/Objects/stringobject.c?rev=61350&view=diff&r1=61350&r2=61349&p1=python/trunk/Objects/stringobject.c&p2=/python/trunk/Objects/stringobject.c
- svn.python.org/view/python/trunk/Objects/unicodeobject.c?rev=61350&view=diff&r1=61350&r2=61349&p1=python/trunk/Objects/unicodeobject.c&p2=/python/trunk/Objects/unicodeobject.c
- svn.python.org/view?rev=61350&view=rev
- www.openwall.com/lists/oss-security/2008/11/05/2
- www.openwall.com/lists/oss-security/2008/11/05/3
- www.securityfocus.com/archive/1/507985/100/0/threaded
- www.vmware.com/security/advisories/VMSA-2009-0016.html
- www.vupen.com/english/advisories/2009/3316
- exchange.xforce.ibmcloud.com/vulnerabilities/46612
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11280
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8564
Vendor advisories and official records. Exploit/PoC links are deliberately left out.