gsd-2021-20322
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well.
Aliases
Aliases
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"description": "A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well.",
"id": "GSD-2021-20322",
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"https://www.suse.com/security/cve/CVE-2021-20322.html",
"https://www.debian.org/security/2022/dsa-5096",
"https://ubuntu.com/security/CVE-2021-20322",
"https://alas.aws.amazon.com/cve/html/CVE-2021-20322.html",
"https://linux.oracle.com/cve/CVE-2021-20322.html",
"https://access.redhat.com/errata/RHSA-2022:1975",
"https://access.redhat.com/errata/RHSA-2022:1988",
"https://access.redhat.com/errata/RHSA-2022:4829",
"https://access.redhat.com/errata/RHSA-2022:4835"
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"modified": "2023-12-13T01:23:12.175685Z",
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"lastModifiedDate": "2023-11-09T14:44Z",
"publishedDate": "2022-02-18T18:15Z"
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}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- 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.