Medium severity · published Aug 25, 2022
CVE-2021-35937
A race condition vulnerability was found in rpm
6.4
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
High
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
Enterprise Linux · Redhat
6.0; 7.0; 8.0; 9.0 · source: NVD
FE
Fedora · Fedoraproject
34 · source: NVD
RP
Rpm · Rpm
before 4.18.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-35937
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-35937
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2021-35937
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1964125
Release Notes
https://rpm.org/wiki/Releases/4.18.0
Third Party Advisory
https://security.gentoo.org/glsa/202210-22
Exploit
https://www.usenix.org/legacy/event/sec05/tech/full_papers/borisov/borisov.pdf
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