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Vulnerability details: VCID-av19-643p-aaaj
Vulnerability ID VCID-av19-643p-aaaj
Aliases CVE-2021-35937
Summary A race condition vulnerability was found in rpm. A local unprivileged user could use this flaw to bypass the checks that were introduced in response to CVE-2017-7500 and CVE-2017-7501, potentially gaining root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Status Published
Exploitability 0.5
Weighted Severity 5.8
Risk 2.9
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
CWE-59 Improper Link Resolution Before File Access ('Link Following')
System Score Found at
cvssv3 6.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-35937.json
epss 0.00012 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 0.00078 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 0.00078 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 0.00078 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 0.00078 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 0.00086 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 0.00103 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 0.00103 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 0.00103 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 0.00103 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 0.00103 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 0.00103 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 0.00103 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 0.00103 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 0.00103 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 0.00103 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 0.00103 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 7e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
cvssv3.1 6.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3 6.4 https://nvd.nist.gov/vuln/detail/CVE-2021-35937
cvssv3.1 6.4 https://nvd.nist.gov/vuln/detail/CVE-2021-35937
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-35937.json
https://access.redhat.com/security/cve/CVE-2021-35937
https://api.first.org/data/v1/epss?cve=CVE-2021-35937
https://bugzilla.redhat.com/show_bug.cgi?id=1964125
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-35937
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://rpm.org/wiki/Releases/4.18.0
https://security.gentoo.org/glsa/202210-22
https://www.usenix.org/legacy/event/sec05/tech/full_papers/borisov/borisov.pdf
990543 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=990543
cpe:2.3:a:rpm:rpm:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:rpm:rpm:*:*:*:*:*:*:*:*
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:6.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
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:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
CVE-2021-35937 https://nvd.nist.gov/vuln/detail/CVE-2021-35937
RHSA-2024:0424 https://access.redhat.com/errata/RHSA-2024:0424
RHSA-2024:0435 https://access.redhat.com/errata/RHSA-2024:0435
RHSA-2024:0453 https://access.redhat.com/errata/RHSA-2024:0453
RHSA-2024:0463 https://access.redhat.com/errata/RHSA-2024:0463
RHSA-2024:0582 https://access.redhat.com/errata/RHSA-2024:0582
RHSA-2024:0647 https://access.redhat.com/errata/RHSA-2024:0647
RHSA-2024:1383 https://access.redhat.com/errata/RHSA-2024:1383
RHSA-2024:1477 https://access.redhat.com/errata/RHSA-2024:1477
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-35937.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:H/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:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-35937
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:H/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-35937
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 0.00536
EPSS Score 0.00012
Published At March 29, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.