CVE-2021-28041: Double Free
First published: Fri Mar 05 2021(Updated: )
ssh-agent in OpenSSH before 8.5 has a double free that may be relevant in a few less-common scenarios, such as unconstrained agent-socket access on a legacy operating system, or the forwarding of an agent to an attacker-controlled host.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Openbsd Openssh | >=8.2<8.5 | |
| Fedoraproject Fedora | =33 | |
| Fedoraproject Fedora | =34 | |
| Netapp Cloud Backup | ||
| Netapp Hci Management Node | ||
| Netapp Solidfire | ||
| IBM Cloud Pak for Business Automation | ||
| Netapp Hci Compute Node | ||
| Netapp Hci Storage Node Firmware | ||
| Netapp Hci Storage Node | ||
| Oracle Communications Offline Mediation Controller | =12.0.0.3.0 | |
| Oracle ZFS Storage Appliance | =8.8 |
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Reference Links
- https://github.com/openssh/openssh-portable/commit/e04fd6dde16de1cdc5a4d9946397ff60d96568db
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KQWGII3LQR4AOTPPFXGMTYE7UDEWIUKI/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TXST2CML2MWY3PNVUXX7FFJE3ATJMNVZ/
- https://security.gentoo.org/glsa/202105-35
- https://security.netapp.com/advisory/ntap-20210416-0002/
- https://www.openssh.com/security.html
- https://www.openssh.com/txt/release-8.5
- https://www.openwall.com/lists/oss-security/2021/03/03/1
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TXST2CML2MWY3PNVUXX7FFJE3ATJMNVZ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KQWGII3LQR4AOTPPFXGMTYE7UDEWIUKI/
Frequently Asked Questions
What is the severity of CVE-2021-28041?
The severity of CVE-2021-28041 is high with a CVSS score of 7.1.
How does CVE-2021-28041 affect OpenSSH?
CVE-2021-28041 affects OpenSSH versions before 8.5.
Which operating systems are affected by CVE-2021-28041?
CVE-2021-28041 affects OpenBSD, Fedora 33, and Fedora 34.
Are Netapp HCI Compute Node and Netapp HCI Storage Node vulnerable to CVE-2021-28041?
No, Netapp HCI Compute Node and Netapp HCI Storage Node are not vulnerable to CVE-2021-28041.
What is the Common Weakness Enumeration (CWE) for CVE-2021-28041?
The CWE for CVE-2021-28041 is CWE-415 (Double Free).
- agent/type
- agent/last-modified-date
- agent/remedy
- agent/first-publish-date
- agent/weakness
- agent/severity
- agent/author
- agent/references
- agent/description
- agent/softwarecombine
- agent/event
- collector/nvd-index
- agent/software-canonical-lookup-request
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/openbsd
- canonical/openbsd openssh
- version/openbsd openssh/8.2
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/33
- version/fedoraproject fedora/34
- vendor/netapp
- canonical/netapp cloud backup
- canonical/netapp hci management node
- canonical/netapp solidfire
- canonical/netapp hci compute node firmware
- canonical/netapp hci compute node
- canonical/netapp hci storage node firmware
- canonical/netapp hci storage node
- vendor/oracle
- canonical/oracle communications offline mediation controller
- version/oracle communications offline mediation controller/12.0.0.3.0
- canonical/oracle zfs storage appliance
- version/oracle zfs storage appliance/8.8