Vulnerability Details : CVE-2021-28041
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.
Vulnerability category: Memory Corruption
Exploit prediction scoring system (EPSS) score for CVE-2021-28041
Probability of exploitation activity in the next 30 days: 0.17%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 53 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-28041
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|
|
4.6
|
MEDIUM | AV:N/AC:H/Au:S/C:P/I:P/A:P |
3.9
|
6.4
|
[email protected] |
|
7.1
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H |
1.2
|
5.9
|
[email protected] |
CWE ids for CVE-2021-28041
-
The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.Assigned by: [email protected] (Primary)
References for CVE-2021-28041
-
https://lists.fedoraproject.org/archives/list/[email protected]/message/TXST2CML2MWY3PNVUXX7FFJE3ATJMNVZ/
Third Party Advisory
-
https://security.netapp.com/advisory/ntap-20210416-0002/
Third Party Advisory
-
https://www.oracle.com//security-alerts/cpujul2021.html
Third Party Advisory
-
https://www.openssh.com/txt/release-8.5
Release Notes;Vendor Advisory
-
https://github.com/openssh/openssh-portable/commit/e04fd6dde16de1cdc5a4d9946397ff60d96568db
Patch;Third Party Advisory
-
https://www.openssh.com/security.html
Not Applicable;Vendor Advisory
-
https://lists.fedoraproject.org/archives/list/[email protected]/message/KQWGII3LQR4AOTPPFXGMTYE7UDEWIUKI/
Mailing List;Third Party Advisory
-
https://security.gentoo.org/glsa/202105-35
Third Party Advisory
-
https://www.openwall.com/lists/oss-security/2021/03/03/1
Mailing List;Patch;Third Party Advisory
Products affected by CVE-2021-28041
- cpe:2.3:o:oracle:zfs_storage_appliance:8.8:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_offline_mediation_controller:12.0.0.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:hci_compute_node_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:hci_storage_node_firmware:-:*:*:*:*:*:*:*