Buffer overflow in Thekelleys Dnsmasq
CVE-2009-2957
Heap-based buffer overflow in the tftp_request function in tftp.c in dnsmasq before 2.50, when --enable-tftp is used, might allow remote attackers to execute arbitrary code via a long filename in a TFTP packet, as demonstrated by a read (aka RRQ) request.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v2 metric
CVSS v2 base score 6.8 (Medium). Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.127 (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: 0.127 · newest: 0.127 · change: 0.000
Affected products
- Thekelleys Dnsmasq — versions 0.4, 0.5, 0.6
Weakness classification (CWE)
References
- www.securityfocus.com/bid/36121 (Patch, vdb-entry)
- secunia.com/advisories/36563 (third-party-advisory)
- www.ubuntu.com/usn/USN-827-1 (vendor-advisory)
- bugzilla.redhat.com/show_bug.cgi
- oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:10538 (signature, vdb-entry)
- www.thekelleys.org.uk/dnsmasq/CHANGELOG (Vendor Advisory)
- www.coresecurity.com/content/dnsmasq-vulnerabilities (Patch)
- rhn.redhat.com/errata/RHSA-2010-0095.html (vendor-advisory)
- www.redhat.com/support/errata/RHSA-2009-1238.html (vendor-advisory)