gsd-2022-43945
Vulnerability from gsd
Modified
2023-12-13 01:19
Details
The Linux kernel NFSD implementation prior to versions 5.19.17 and 6.0.2 are vulnerable to buffer overflow. NFSD tracks the number of pages held by each NFSD thread by combining the receive and send buffers of a remote procedure call (RPC) into a single array of pages. A client can force the send buffer to shrink by sending an RPC message over TCP with garbage data added at the end of the message. The RPC message with garbage data is still correctly formed according to the specification and is passed forward to handlers. Vulnerable code in NFSD is not expecting the oversized request and writes beyond the allocated buffer space. CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Aliases
Aliases
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"alias": "CVE-2022-43945",
"id": "GSD-2022-43945",
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"https://advisories.mageia.org/CVE-2022-43945.html",
"https://access.redhat.com/errata/RHSA-2022:8973",
"https://access.redhat.com/errata/RHSA-2022:8974",
"https://access.redhat.com/errata/RHSA-2022:9082",
"https://www.suse.com/security/cve/CVE-2022-43945.html",
"https://ubuntu.com/security/CVE-2022-43945",
"https://access.redhat.com/errata/RHSA-2023:0300",
"https://access.redhat.com/errata/RHSA-2023:0334",
"https://access.redhat.com/errata/RHSA-2023:0348",
"https://access.redhat.com/errata/RHSA-2023:0832",
"https://access.redhat.com/errata/RHSA-2023:0839",
"https://access.redhat.com/errata/RHSA-2023:0854"
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"attackVector": "NETWORK",
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"baseScore": 7.5,
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
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"lastModifiedDate": "2023-03-08T18:15Z",
"publishedDate": "2022-11-04T19:15Z"
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.