Vulnerability in Apache Apr-Util
CVE-2009-1956
Off-by-one error in the apr_brigade_vprintf function in Apache APR-util before 1.3.5 on big-endian platforms allows remote attackers to obtain sensitive information or cause a denial of service (application crash) via crafted input.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 6.4 (Medium). Vector: AV:N/AC:L/Au:N/C:P/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.120 (96.1th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.120 · newest: 0.120 · change: 0.000
Affected products
- Apache Apr-Util
- Apache HTTP Server
- Canonical Ubuntu Linux — versions 6.06, 8.04, 8.10
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secunia.com/advisories/35487 (Broken Link, third-party-advisory)
- www.apache.org/dist/apr/CHANGES-APR-UTIL-1.3 (Vendor Advisory)
- www.vupen.com/english/advisories/2009/1907 (Permissions Required, vdb-entry)
- www.redhat.com/archives/fedora-package-announce/2009-June/msg01228.html (vendor-advisory, Third Party Advisory)
- www-01.ibm.com/support/docview.wss (vendor-advisory, Third Party Advisory)
- www.mandriva.com/security/advisories (vendor-advisory, Broken Link)
- secunia.com/advisories/35395 (Broken Link, third-party-advisory)
- www-01.ibm.com/support/docview.wss (vendor-advisory, Third Party Advisory)
- secunia.com/advisories/35284 (Broken Link, third-party-advisory)
- www-01.ibm.com/support/docview.wss (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2009-1956?
- CVE-2009-1956 is a vulnerability in Apache Apr-Util, classified under CWE-189. Published 2009-06-08.
- Is CVE-2009-1956 known to be exploited?
- 11 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.