CVE-2020-24388
published 2020-10-19CVE-2020-24388: An issue was discovered in the _send_secure_msg() function of yubihsm-shell through 2.0.2. The function does not validate the embedded length field of a…
PriorityP337high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
1.75%
75.7th percentile
An issue was discovered in the _send_secure_msg() function of yubihsm-shell through 2.0.2. The function does not validate the embedded length field of a message received from the device. This could lead to an oversized memcpy() call that will crash the running process. This could be used by an attacker to cause a denial of service.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| fedoraproject | fedora | — | — |
| yubico | yubihsm-shell | <= 2.0.2 | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
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Bugzilla
CVE-2020-24388 yubihsm-shell: _send_secure_msg() does not validate the embedded length field of a message which could result in DoS
bugzilla·2020-10-21·CVSS 7.5
CVE-2020-24388 [HIGH] CVE-2020-24388 yubihsm-shell: _send_secure_msg() does not validate the embedded length field of a message which could result in DoS
CVE-2020-24388 yubihsm-shell: _send_secure_msg() does not validate the embedded length field of a message which could result in DoS
An issue was discovered in the _send_secure_msg() function of yubihsm-shell through 2.0.2. The function does not validate the embedded length field of a message received from the device. This could lead to an oversized memcpy() call that will crash the running process. This could be used by an attacker to cause a denial of service.
References:
https://blog.inhq.net/posts/yubico-libyubihsm-vuln/
https://developers.yubico.com/yubihsm-shell/
https://github.com/Yubico/yubihsm-shell
https://www.yubico.com/support/security-advisories/ysa-2020-06/
Discussion:
Created yubihsm-shell tracking bugs for this issue:
Affects: fedora-all [bug 1890206]
---
This CVE Bu
Bugzilla
CVE-2020-24388 yubihsm-shell: _send_secure_msg() does not validate the embedded length field of a message which could result in DoS [fedora-all]
bugzilla·2020-10-21·CVSS 7.5
CVE-2020-24388 [HIGH] CVE-2020-24388 yubihsm-shell: _send_secure_msg() does not validate the embedded length field of a message which could result in DoS [fedora-all]
CVE-2020-24388 yubihsm-shell: _send_secure_msg() does not validate the embedded length field of a message which could result in DoS [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg co
https://blog.inhq.net/posts/yubico-libyubihsm-vuln/https://developers.yubico.com/yubihsm-shell/https://github.com/Yubico/yubihsm-shellhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y77KQJW76M3PFOBFLBT6DLH2NWHYRNZO/https://www.yubico.com/support/security-advisories/ysa-2020-06/https://blog.inhq.net/posts/yubico-libyubihsm-vuln/https://developers.yubico.com/yubihsm-shell/https://github.com/Yubico/yubihsm-shellhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y77KQJW76M3PFOBFLBT6DLH2NWHYRNZO/https://www.yubico.com/support/security-advisories/ysa-2020-06/
2020-10-19
Published