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Vulnerability details: VCID-9hqr-9vgj-aaam
Vulnerability ID VCID-9hqr-9vgj-aaam
Aliases CVE-2021-3677
Summary A flaw was found in postgresql. A purpose-crafted query can read arbitrary bytes of server memory. In the default configuration, any authenticated database user can complete this attack at will. The attack does not require the ability to create objects. If server settings include max_worker_processes=0, the known versions of this attack are infeasible. However, undiscovered variants of the attack may be independent of that setting.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2021/CVE-2021-3677.html
rhas Moderate https://access.redhat.com/errata/RHSA-2021:5179
rhas Moderate https://access.redhat.com/errata/RHSA-2021:5197
rhas Moderate https://access.redhat.com/errata/RHSA-2021:5235
rhas Moderate https://access.redhat.com/errata/RHSA-2021:5236
rhas Moderate https://access.redhat.com/errata/RHSA-2022:4931
cvssv3 6.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-3677.json
epss 0.00091 https://api.first.org/data/v1/epss?cve=CVE-2021-3677
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epss 0.00527 https://api.first.org/data/v1/epss?cve=CVE-2021-3677
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=2001857
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3677
cvssv3.1 6.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 4.0 https://nvd.nist.gov/vuln/detail/CVE-2021-3677
cvssv3 6.5 https://nvd.nist.gov/vuln/detail/CVE-2021-3677
cvssv3.1 6.5 https://nvd.nist.gov/vuln/detail/CVE-2021-3677
archlinux Medium https://security.archlinux.org/AVG-2290
generic_textual Medium https://ubuntu.com/security/notices/USN-5038-1
cvssv3 6.5 https://www.postgresql.org/support/security/CVE-2021-3677/
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2021/CVE-2021-3677.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-3677.json
https://api.first.org/data/v1/epss?cve=CVE-2021-3677
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3677
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://security.gentoo.org/glsa/202211-04
https://security.netapp.com/advisory/ntap-20220407-0008/
https://ubuntu.com/security/notices/USN-5038-1
https://www.postgresql.org/about/news/postgresql-134-128-1113-1018-9623-and-14-beta-3-released-2277/
https://www.postgresql.org/support/security/CVE-2021-3677/
2001857 https://bugzilla.redhat.com/show_bug.cgi?id=2001857
AVG-2290 https://security.archlinux.org/AVG-2290
cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*
cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:*
CVE-2021-3677 https://nvd.nist.gov/vuln/detail/CVE-2021-3677
RHSA-2021:5179 https://access.redhat.com/errata/RHSA-2021:5179
RHSA-2021:5197 https://access.redhat.com/errata/RHSA-2021:5197
RHSA-2021:5235 https://access.redhat.com/errata/RHSA-2021:5235
RHSA-2021:5236 https://access.redhat.com/errata/RHSA-2021:5236
RHSA-2022:4931 https://access.redhat.com/errata/RHSA-2022:4931
USN-5038-1 https://usn.ubuntu.com/5038-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-3677.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:S/C:P/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-3677
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-3677
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-3677
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.40011
EPSS Score 0.00091
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.