MEDIUM
dnsmasq: multiple vulnerabilities in TFTP server
Published Sep 2, 2009
4.3
MEDIUMCVSS 2.0
EPSS 10.38%
Description
The tftp_request function in tftp.c in dnsmasq before 2.50, when --enable-tftp is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a TFTP read (aka RRQ) request with a malformed blksize option.
Affected products
No data.
OR
- ≤ 2.49
- 0.4
- 0.5
- 0.6
- 0.7
- 0.95
- 0.96
- 0.98
- 0.992
- 0.996
- 1.0
- 1.2
- 1.3
- 1.4
- 1.5
- 1.6
- 1.7
- 1.8
- 1.9
- 1.10
- 1.11
- 1.12
- 1.13
- 1.14
- 1.15
- 1.16
- 1.17
- 1.18
- 2.0
- 2.1
- 2.2
- 2.3
- 2.4
- 2.5
- 2.6
- 2.7
- 2.8
- 2.9
- 2.10
- 2.11
- 2.12
- 2.13
- 2.14
- 2.15
- 2.16
- 2.17
- 2.18
- 2.19
- 2.20
- 2.21
- 2.22
- 2.23
- 2.24
- 2.25
- 2.26
- 2.27
- 2.28
- 2.29
- 2.30
- 2.31
- 2.33
- 2.34
- 2.35
- 2.36
- 2.37
- 2.38
- 2.39
- 2.40
- 2.41
- 2.42
- 2.43
- 2.44
- 2.45
- 2.46
- 2.47
- 2.48
No data.
Red Hat Enterprise Linux 5
dnsmasq-0:2.45-1.1.el5_3
Fixed · RHSA-2009:1238
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | dnsmasq-0:2.45-1.1.el5_3 | Fixed | RHSA-2009:1238 |
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.
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
10.38% 0.10382
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.10382
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 (8 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 10.38% (0.10382) | 95.60th | v5 (v2026.06.15) |
| Jun 15, 2026 | 10.38% (0.10382) | 95.12th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.91% (0.00905) | 74.13th | v4 (v2025.03.14) |
| Dec 12, 2024 | 3.56% (0.03557) | 91.96th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.56% (0.03557) | 90.15th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.97% (0.01974) | 78.97th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.97% (0.01974) | 77.12th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.97% (0.01974) | 56.20th | v2 (v2022.01.01) |
Weaknesses (1)
References (12)
- http://secunia.com/advisories/36563 third-party-advisoryx_refsource_SECUNIA
- http://www.coresecurity.com/content/dnsmasq-vulnerabilities x_refsource_MISC
- http://www.redhat.com/support/errata/RHSA-2009-1238.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/bid/36120 vdb-entryx_refsource_BID
- http://www.thekelleys.org.uk/dnsmasq/CHANGELOG x_refsource_CONFIRM
- http://www.ubuntu.com/usn/USN-827-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2009-2958 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=519020 x_refsource_CONFIRMIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2009-2958
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9816 vdb-entrysignaturex_refsource_OVAL
- https://rhn.redhat.com/errata/RHSA-2010-0095.html vendor-advisoryx_refsource_REDHAT
- https://www.cve.org/CVERecord?id=CVE-2009-2958
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/36563 | third-party-advisoryx_refsource_SECUNIA | |
| http://www.coresecurity.com/content/dnsmasq-vulnerabilities | x_refsource_MISC | |
| http://www.redhat.com/support/errata/RHSA-2009-1238.html | vendor-advisoryx_refsource_REDHAT | |
| http://www.securityfocus.com/bid/36120 | vdb-entryx_refsource_BID | |
| http://www.thekelleys.org.uk/dnsmasq/CHANGELOG | x_refsource_CONFIRM | |
| http://www.ubuntu.com/usn/USN-827-1 | vendor-advisoryx_refsource_UBUNTU | |
| https://access.redhat.com/security/cve/CVE-2009-2958 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=519020 | x_refsource_CONFIRMIssue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2009-2958 | ||
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9816 | vdb-entrysignaturex_refsource_OVAL | |
| https://rhn.redhat.com/errata/RHSA-2010-0095.html | vendor-advisoryx_refsource_REDHAT | |
| https://www.cve.org/CVERecord?id=CVE-2009-2958 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Sep 2, 2009
Updated Aug 7, 2024
Reserved Aug 24, 2009
Link CVE-2009-2958
CISA Vulnrichment
Updated n/a