CVE-2021-20266
Published: August 31, 2023Last modified: August 31, 2023
Description
A flaw was found in RPM's hdrblobInit() in lib/header.c. This flaw allows an attacker who can modify the rpmdb to cause an out-of-bounds read. The highest threat from this vulnerability is to system availability.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 4.9 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | HIGH |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | rpm | Not affected (4.18.0-r2) |
| Stream | rpm | Not affected (4.18.1-r0) |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1927741
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMGXO3W6DHPO62GJ4VVF5DEUX5DRUR5K/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VHRPNBCRPDJHHQE3MBPSZK4H7X2IM7AC/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/TMGXO3W6DHPO62GJ4VVF5DEUX5DRUR5K/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/VHRPNBCRPDJHHQE3MBPSZK4H7X2IM7AC/
- https://security.gentoo.org/glsa/202107-43