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Vulnerability details: VCID-2ef7-dr9v-aaan
Vulnerability ID VCID-2ef7-dr9v-aaan
Aliases CVE-2021-20294
Summary A flaw was found in binutils readelf 2.35 program. An attacker who is able to convince a victim using readelf to read a crafted file could trigger a stack buffer overflow, out-of-bounds write of arbitrary data supplied by the attacker. The highest impact of this flaw is to confidentiality, integrity, and availability.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
System Score Found at
cvssv3 7.0 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-20294.json
epss 0.00214 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.00214 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.00214 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.00214 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.00294 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.00294 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.00294 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.00294 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.00294 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.00294 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.00294 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.00294 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.00294 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.00294 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.00294 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.00294 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15728 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15728 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15728 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15728 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.15761 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
epss 0.409 https://api.first.org/data/v1/epss?cve=CVE-2021-20294
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1943533
cvssv3.1 7 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 8.8 https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E
generic_textual HIGH https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E
cvssv3.1 8.8 https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E
generic_textual HIGH https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2021-20294
cvssv3 7.8 https://nvd.nist.gov/vuln/detail/CVE-2021-20294
cvssv3.1 7.8 https://nvd.nist.gov/vuln/detail/CVE-2021-20294
archlinux Medium https://security.archlinux.org/AVG-1385
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-20294.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:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H 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: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E
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:N/UI:R/S:U/C:H/I:H/A:H Found at https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E
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:M/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2021-20294
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:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-20294
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:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-20294
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 0.59004
EPSS Score 0.00214
Published At Dec. 17, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.