CVE-2024-7383
published 2024-08-05CVE-2024-7383: A flaw was found in libnbd. The client did not always correctly verify the NBD server's certificate when using TLS to connect to an NBD server. This issue…
PriorityP340high7.4CVSS 3.1
AVNACHPRNUINSUCHIHAN
EPSS
0.39%
31.3th percentile
A flaw was found in libnbd. The client did not always correctly verify the NBD server's certificate when using TLS to connect to an NBD server. This issue allows a man-in-the-middle attack on NBD traffic.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | libnbd | < libnbd 1.20.2-1 (forky) | libnbd 1.20.2-1 (forky) |
| msrc | azl3_libnbd_1.18.3-3_on_azure_linux_3.0 | — | — |
| msrc | azure_linux_3.0_arm | — | — |
| msrc | azure_linux_3.0_x64 | — | — |
| msrc | cbl2_libnbd_1.12.1-4_on_cbl_mariner_2.0 | — | — |
| msrc | cbl_mariner_2.0_arm | — | — |
| msrc | cbl_mariner_2.0_x64 | — | — |
| redhat | libnbd | >= 0 < 1.20.2-1 | 1.20.2-1 |
| redhat | libnbd | >= 0 < 1.20.2-1 | 1.20.2-1 |
CVSS provenance
nvdv3.17.4HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
osv7.4HIGH
vendor_debian7.4HIGH
vendor_msrc7.4HIGH
vendor_redhat7.4HIGH
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Microsoft
Libnbd: nbd server improper certificate validation
vendor_msrc·2024-08-13·CVSS 7.4
CVE-2024-7383 [HIGH] CWE-295 Libnbd: nbd server improper certificate validation
Libnbd: nbd server improper certificate validation
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
redhat: redhat
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: https://learn.mi
Red Hat
libnbd: NBD server improper certificate validation
vendor_redhat·2024-06-25·CVSS 7.4
CVE-2024-7383 [HIGH] CWE-295 libnbd: NBD server improper certificate validation
libnbd: NBD server improper certificate validation
A flaw was found in libnbd. The client did not always correctly verify the NBD server's certificate when using TLS to connect to an NBD server. This issue allows a man-in-the-middle attack on NBD traffic.
A flaw was found in libnbd. The client did not always correctly verify the NBD server's certificate when using TLS to connect to an NBD server. This issue allows a man-in-the-middle attack on NBD traffic.
Statement: This CVE is rated as Moderate because it requires an active Man-in-the-Middle (MITM) attacker who can intercept and modify the connection's traffic at the TCP/IP layer. While this can compromise the confidentiality and integrity of resources, the vulnerability is considered to be difficult to exploit under normal circumstan
Debian
CVE-2024-7383: libnbd - A flaw was found in libnbd. The client did not always correctly verify the NBD s...
vendor_debian·2024·CVSS 7.4
CVE-2024-7383 [HIGH] CVE-2024-7383: libnbd - A flaw was found in libnbd. The client did not always correctly verify the NBD s...
A flaw was found in libnbd. The client did not always correctly verify the NBD server's certificate when using TLS to connect to an NBD server. This issue allows a man-in-the-middle attack on NBD traffic.
Scope: local
bookworm: open
bullseye: open
forky: resolved (fixed in 1.20.2-1)
sid: resolved (fixed in 1.20.2-1)
trixie: resolved (fixed in 1.20.2-1)
GHSA
GHSA-rqmr-f8r9-69wq: A flaw was found in libnbd
ghsa_unreviewed·2024-08-05
CVE-2024-7383 [MEDIUM] CWE-295 GHSA-rqmr-f8r9-69wq: A flaw was found in libnbd
A flaw was found in libnbd. The client did not always correctly verify the NBD server's certificate when using TLS to connect to an NBD server. This issue allows a man-in-the-middle attack on NBD traffic.
OSV
CVE-2024-7383: A flaw was found in libnbd
osv·2024-08-05·CVSS 7.4
CVE-2024-7383 [HIGH] CVE-2024-7383: A flaw was found in libnbd
A flaw was found in libnbd. The client did not always correctly verify the NBD server's certificate when using TLS to connect to an NBD server. This issue allows a man-in-the-middle attack on NBD traffic.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://access.redhat.com/errata/RHSA-2024:6757https://access.redhat.com/errata/RHSA-2024:6964https://access.redhat.com/security/cve/CVE-2024-7383https://bugzilla.redhat.com/show_bug.cgi?id=2302865https://lists.libguestfs.org/archives/list/[email protected]/message/LHR3BW6RJ7K4BJBQIYV3GTZLSY27VZO2https://lists.libguestfs.org/archives/list/[email protected]/thread/ENZY4LHLARA3N4C3JUNLPYUCXHFO7BWQ/
2024-08-05
Published