CVE-2020-11100
Scores
EPSS
Percentile: 74.8%
CVSS
CVSS Score: 8.8/10
All CVSS Scores
Vector: CVSS:3.1/AV:N/AC:L/PR:L/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
Low (L)
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:S/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
Single
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
In hpack_dht_insert in hpack-tbl.c in the HPACK decoder in HAProxy 1.8 through 2.x before 2.1.4, a remote attacker can write arbitrary bytes around a certain location on the heap via a crafted HTTP/2 request, possibly causing remote code execution.
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Sources
CWEs
Related Vulnerabilities
Recommendations
Source: nvd
All HAProxy 2.0.x users should upgrade to the latest version:
# emerge –sync
# emerge –ask –oneshot –verbose “>=net-proxy/haproxy-2.0.13:0/2.0”
All other HAProxy users should upgrade to the latest version:
# emerge –sync
# emerge –ask –oneshot –verbose “>=net-proxy/haproxy-2.1.4”
Vulnerable Software (22)
Type: Configuration
Product: haproxy
Operating System: debian
{ "fixed": "2.0.13-2"}
Source: debian
Type: Configuration
Product: haproxy
Operating System: debian stretch 9
{ "unaffected": true}
Source: debian
Type: Configuration
Product: haproxy
Operating System: debian jessie 8
{ "unaffected": true}
Source: debian
Type: Configuration
Product: haproxy
Operating System: ubuntu bionic 18.04
{ "fixed": "1.8.8-1ubuntu0.10"}
Source: ubuntu
Type: Configuration
Product: haproxy
Operating System: ubuntu eoan 19.10
{ "fixed": "2.0.5-1ubuntu0.4"}
Source: ubuntu
Type: Configuration
Product: haproxy
Operating System: ubuntu trusty 14.04
{ "unfixed": true}
Source: ubuntu
Type: Configuration
Product: haproxy
Operating System: ubuntu xenial 16.04
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: haproxy
Operating System: altlinux
{ "fixed": "0:2.8.2-alt1"}
Source: redhat
Type: Configuration
Product: haproxy
Operating System: rhel
{ "fixed": "1.8.15-6.el8_1.1"}
Source: redhat
Type: Configuration
Product: haproxy
Operating System: rhel
{ "fixed": "1.8.15-5.el8_0.1"}
Source: redhat
Type: Configuration
Product: haproxy
Operating System: rhel
{ "fixed": "1.8.23-3.el7"}
Source: redhat
Type: Configuration
Product: haproxy
Operating System: rhel
{ "fixed": "2.0.13-3.el7"}
Source: redhat
Type: Configuration
Product: rh-haproxy18-haproxy
Operating System: rhel
{ "fixed": "1.8.17-1.el7.1"}
Source: redhat
Type: Configuration
Product: rh-haproxy18-haproxy
Operating System: rhel
{ "fixed": "1.8.17-1.el7.1"}
Source: redhat
Type: Configuration
Product: rh-haproxy18-haproxy
Operating System: rhel
{ "fixed": "1.8.17-1.el7.1"}
Source: redhat
Type: Configuration
Product: rh-haproxy18-haproxy
Operating System: rhel
{ "fixed": "1.8.17-1.el7.1"}
Source: redhat
Type: Configuration
Vendor: *
Product: debian_linux
Operating System: * * *
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "vulnerable": true } ], "operator": "OR"}
Source: nvd
Type: Configuration
Vendor: *
Product: fedora
Operating System: * * *
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",...
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*", "vulnerable": true } ], "operator": "OR"}
Source: nvd
Type: Configuration
Vendor: *
Product: haproxy
Operating System: * * *
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.1.4", "versionStartIncluding": "1.8.0", "vulnerable": true } ]...
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.1.4", "versionStartIncluding": "1.8.0", "vulnerable": true } ], "operator": "OR"}
Source: nvd
Type: Configuration
Vendor: *
Product: leap
Operating System: * * *
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*", "vulnerable": true } ], "operator": "OR"}
Source: nvd