CVE-2009-4134: python Out-of-bounds Write
Vulnerability summary
CVE-2009-4134 is a medium (CVSS 5.0) Out-of-bounds Write vulnerability in python. EPSS estimates a 4.42% chance of exploitation in the next 30 days, higher than 91.3% of scored vulnerabilities.
Not severe (CVSS 5, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2Timeline
- 27-05-2010PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
Description
Buffer underflow in the rgbimg module in Python 2.5 allows remote attackers to cause a denial of service (application crash) via a large ZSIZE value in a black-and-white (aka B/W) RGB image that triggers an invalid pointer dereference.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
4.42%
Chance of exploitation in the next 30 days
Percentile
91%
Versus all other CVEs
30-day change
No change 0.00 pp
From 4.42% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Python1 product
- python2.5.0
1 vendor · 1 product
References
15 links- lists.apple.com/archives/security-announce/2010//Nov/msg00000.htmlVendor AdvisoryX Refsource APPLEMailing List
- lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
Show all 15 references
- www.redhat.com/support/errata/RHSA-2011-0027.htmlVendor AdvisoryX Refsource REDHATThird Party Advisory
- www.mandriva.com/security/advisories?name=MDVSA-2010:215Vendor AdvisoryX Refsource MANDRIVABroken Link
- www.redhat.com/support/errata/RHSA-2011-0260.htmlVendor AdvisoryX Refsource REDHATThird Party Advisory