CVE-2021-35937
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with an admin-level account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.3% in the next 30 days (EPSS).
- Severity: 6.4 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Weakness
- CWE-59
- Record status
- Modified
Affected
- Rpm < 4.18.0
- Redhat Enterprise Linux 6.0
- Redhat Enterprise Linux 7.0
- Redhat Enterprise Linux 8.0
- Redhat Enterprise Linux 9.0
- Fedoraproject Fedora 34
Attack profile CVSS 3.1 · 6.4
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2021-35937.md and follow it. Check whether this project is affected by CVE-2021-35937. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://access.redhat.com/security/cve/CVE-2021-35937
- https://bugzilla.redhat.com/show_bug.cgi?id=1964125
- https://access.redhat.com/security/cve/CVE-2021-35937
- https://bugzilla.redhat.com/show_bug.cgi?id=1964125
References
- https://access.redhat.com/security/cve/CVE-2021-35937
- https://bugzilla.redhat.com/show_bug.cgi?id=1964125
- 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
- https://access.redhat.com/security/cve/CVE-2021-35937
- https://bugzilla.redhat.com/show_bug.cgi?id=1964125
- 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