01 Record

CVE-2024-56779

nfsd: fix nfs4_openowner leak when concurrent nfsd4_open occur

CriticalPUBLISHEDCNA: Linux

CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

nfsd: fix nfs4_openowner leak when concurrent nfsd4_open occur

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.53% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 42.8% of scored records. A rank, not a probability.

NVD base score

5.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-08-04.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2025-01-08 17:49Z1 YR AGO

Last updated

2026-08-05 11:46Z1 MO AGO

Reserved

2024-12-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-401Missing Release of Memory after Effective LifetimeVariant

Data version

5.2

Document digest

b6c5dfa4beb7015a2b338b821299267440f9df5c8413fd22700ff685e38aa84d

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux3234975f477f746c22d076ea178a79ea104b2ca7 to < a85364f0d30dee01c5d5b4afa55a9629a8f36d8e, 3234975f477f746c22d076ea178a79ea104b2ca7 to < 2d505a801e57428057563762f67a5a62009b2600, 3234975f477f746c22d076ea178a79ea104b2ca7 to < 0ab0a3ad24e970e894abcac58f85c332d1726749, 3234975f477f746c22d076ea178a79ea104b2ca7 to < 45abb68c941ebc9a35c6d3a7b08196712093c636, 3234975f477f746c22d076ea178a79ea104b2ca7 to < 37dfc81266d3a32294524bfadd3396614f8633ee, 3234975f477f746c22d076ea178a79ea104b2ca7 to < 6f73f920b7ad0084373e46121d7ac34117aed652, 3234975f477f746c22d076ea178a79ea104b2ca7 to < 98100e88dd8865999dc6379a3356cd799795fe7b, 3.17—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/a85364f0d30dee01c5d5b4afa55a9629a8f36d8e
git.kernel.orghttps://git.kernel.org/stable/c/2d505a801e57428057563762f67a5a62009b2600
git.kernel.orghttps://git.kernel.org/stable/c/0ab0a3ad24e970e894abcac58f85c332d1726749
git.kernel.orghttps://git.kernel.org/stable/c/45abb68c941ebc9a35c6d3a7b08196712093c636
git.kernel.orghttps://git.kernel.org/stable/c/37dfc81266d3a32294524bfadd3396614f8633ee
git.kernel.orghttps://git.kernel.org/stable/c/6f73f920b7ad0084373e46121d7ac34117aed652
git.kernel.orghttps://git.kernel.org/stable/c/98100e88dd8865999dc6379a3356cd799795fe7b
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

01 Record index

CVE-2024-56779

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2024-56779

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References