CVE-2021-3421 — Improper Verification of Cryptographic Signature in RPM
CWE-347 — Improper Verification of Cryptographic SignatureCWE-416 — Use After Free10 documents7 sources
Severity
5.5MEDIUMNVD
OSV4.9
EPSS
0.2%
top 60.81%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMay 19
Latest updateJul 21
Description
A flaw was found in the RPM package in the read functionality. This flaw allows an attacker who can convince a victim to install a seemingly verifiable package or compromise an RPM repository, to cause RPM database corruption. The highest threat from this vulnerability is to data integrity. This flaw affects RPM versions before 4.17.0-alpha.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:NExploitability: 1.8 | Impact: 3.6
Affected Packages8 packages
Also affects: Fedora 32, 33, 34, Enterprise Linux 8.0
Patches
🔴Vulnerability Details
3📋Vendor Advisories
6Microsoft▶
drivers/usb/host/max3421-hcd.c in the Linux kernel before 5.13.6 allows physically proximate attackers to cause a denial of service (use-after-free and panic) by removing a MAX-3421 USB device in cert↗2021-08-10
Red Hat▶
kernel: use-after-free and panic in drivers/usb/host/max3421-hcd.c by removing a MAX-3421 USB device in certain situations↗2021-07-21
Microsoft▶
A flaw was found in the RPM package in the read functionality. This flaw allows an attacker who can convince a victim to install a seemingly verifiable package or compromise an RPM repository to cause↗2021-05-11