CVE-2016-2774
MEDIUM
5.9
CVSS Score
Published: March 9, 2016 at 03:26 PM UTC
Updated: June 17, 2026 at 12:44 AM UTC
3 products affected across 3 vendorsDebian LinuxUbuntu LinuxDHCP
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Severity
MEDIUM5.9
Exploit prediction
EPSS 74%
Description
ISC DHCP 4.1.x before 4.1-ESV-R13 and 4.2.x and 4.3.x before 4.3.4 does not restrict the number of concurrent TCP sessions, which allows remote attackers to cause a denial of service (INSIST assertion failure or request-processing outage) by establishing many sessions.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Ubuntu Linux· Canonicalrubygems
95%Debian Linux· Debiandrupal
95%4.1-esv4.1-esv r14.1-esv r104.1-esv r10_b14.1-esv r11_b14.1-esv r11_rc14.1-esv r11_rc24.1-esv r124.1-esv r12_b14.1-esv r24.1-esv r34.1-esv r3_b14.1-esv r44.1-esv r54.1-esv r5_b14.1-esv r5_rc14.1-esv r5_rc24.1-esv r64.1-esv r74.1-esv r84.1-esv r8_b14.1-esv r8_rc14.1-esv r94.1-esv r9_b14.1-esv r9_rc14.1-esv rc14.1.04.1.0 a14.1.0 a24.1.0 b14.1.14.1.1 b14.1.1 b24.1.1 b34.1.1 p14.1.1 rc14.1.24.1.2 b14.1.2 p14.1.2 rc14.2.04.2.0 a14.2.0 a24.2.0 b14.2.0 b24.2.0 p14.2.0 p24.2.0 rc14.2.14.2.1 b14.2.1 p14.2.1 rc14.2.24.2.2 b14.2.2 rc14.2.34.2.3 p14.2.3 p24.2.44.2.4 b14.2.4 p14.2.4 p24.2.4 rc14.2.4 rc24.2.54.2.5 b14.2.5 p14.2.5 rc14.2.64.2.6 b14.2.6 rc14.2.74.2.7 b14.2.7 rc14.2.84.2.8 b14.2.8 rc14.2.8 rc24.3.04.3.0 a14.3.0 b14.3.0 rc14.3.14.3.1 b14.3.1 rc14.3.24.3.2 b14.3.2 rc14.3.2 rc24.3.34.3.3 b1
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183458.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183640.html
- http://lists.opensuse.org/opensuse-updates/2016-07/msg00066.html
- http://rhn.redhat.com/errata/RHSA-2016-2590.html
- https://kb.isc.org/article/AA-01354
References (10)
Vendor Advisoryx_refsource_FEDORAThird Party Advisory
Source: [email protected]
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183458.htmlVendor Advisoryx_refsource_FEDORAThird Party Advisory
Source: [email protected]
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183640.htmlVendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-updates/2016-07/msg00066.htmlVendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
http://rhn.redhat.com/errata/RHSA-2016-2590.htmlx_refsource_CONFIRMThird Party Advisory
Source: [email protected]
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.htmlVDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/84208VDB Entryx_refsource_SECTRACKThird Party Advisory
Source: [email protected]
http://www.securitytracker.com/id/1035196CVSS
- Attack Vector
- NETWORK
- Complexity
- HIGH
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-20
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