CVE-2016-2851
Scores
EPSS
Percentile: 0.0%
CVSS
CVSS Score: 9.8/10
All CVSS Scores
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Network (N)
Describes how the vulnerability is exploited
Attack Complexity
Low (L)
Describes the conditions beyond the attacker's control
Privileges Required
None (N)
Describes the level of privileges an attacker must possess
User Interaction
None (N)
Captures the requirement for a human user participation
Scope
Unchanged (U)
Determines if a successful attack impacts components beyond the vulnerable component
Confidentiality Impact
High (H)
Measures the impact to the confidentiality of information
Integrity Impact
High (H)
Measures the impact to integrity of a successfully exploited vulnerability
Availability Impact
High (H)
Measures the impact to the availability of the impacted component
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Network (N)
Describes how the vulnerability is exploited
Attack Complexity
Low (L)
Describes the conditions beyond the attacker's control
Authentication
None (N)
Describes the level of privileges an attacker must possess
Confidentiality Impact
Partial
Measures the impact to the confidentiality of information
Integrity Impact
Partial
Measures the impact to integrity of a successfully exploited vulnerability
Availability Impact
Partial
Measures the impact to the availability of the impacted component
Description
Integer overflow in proto.c in libotr before 4.1.1 on 64-bit platforms allows remote attackers to cause a denial of service (memory corruption and application crash) or execute arbitrary code via a series of large OTR messages, which triggers a heap-based buffer overflow.
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Sources
CWEs
Exploits
Recommendations
Source: nvd
All libotr users should upgrade to the latest version:
# emerge –sync
# emerge –ask –oneshot –verbose “>=net-libs/libotr-4.1.1”
All Pidgin OTR users should upgrade to the latest version:
# emerge –sync
# emerge –ask –oneshot –verbose “>=x11-plugins/pidgin-otr-4.0.2”
Vulnerable Software (7)
Type: Configuration
Product: libotr
Operating System: ubuntu trusty 14.04
{ "fixed": "4.0.0-2.2ubuntu1.1"}
Source: ubuntu
Type: Configuration
Product: libotr
Operating System: ubuntu wily 15.10
{ "fixed": "4.1.0-2ubuntu0.1"}
Source: ubuntu
Type: Configuration
Product: libotr
Operating System: debian
{ "fixed": "4.1.1-1"}
Source: debian
Type: Configuration
Vendor: cypherpunks
Product: libotr
Operating System: * * *
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:a:cypherpunks:libotr:*:*:*:*:*:*:*:*", "versionEndIncluding": "4.1.0", "vulnerable": true } ], "operator": "OR"}
Source: nvd
Type: Configuration
Vendor: debian
Product: debian_linux
Operating System: * * *
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",...
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "vulnerable": true } ], "operator": "OR"}
Source: nvd
Type: Configuration
Vendor: opensuse
Product: leap
Operating System: * * *
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*", ...
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*", "vulnerable": true } ], "operator": "OR"}
Source: nvd
Type: Configuration
Vendor: opensuse
Product: opensuse
Operating System: * * *
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*", ...
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*", "vulnerable": true } ], "operator": "OR"}
Source: nvd