ghsa-wp96-g7r8-wxf4
Vulnerability from github
Published
2022-05-24 17:36
Modified
2022-05-24 17:36
Details
An issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. The code that reassembles fragmented packets fails to properly validate the total length of an incoming packet specified in its IP header, as well as the fragmentation offset value specified in the IP header. By crafting a packet with specific values of the IP header length and the fragmentation offset, attackers can write into the .bss section of the program (past the statically allocated buffer that is used for storing the fragmented data) and cause a denial of service in uip_reass() in uip.c, or possibly execute arbitrary code on some target architectures.
{ "affected": [], "aliases": [ "CVE-2020-17438" ], "database_specific": { "cwe_ids": [ "CWE-787" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2020-12-11T23:15:00Z", "severity": "CRITICAL" }, "details": "An issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. The code that reassembles fragmented packets fails to properly validate the total length of an incoming packet specified in its IP header, as well as the fragmentation offset value specified in the IP header. By crafting a packet with specific values of the IP header length and the fragmentation offset, attackers can write into the .bss section of the program (past the statically allocated buffer that is used for storing the fragmented data) and cause a denial of service in uip_reass() in uip.c, or possibly execute arbitrary code on some target architectures.", "id": "GHSA-wp96-g7r8-wxf4", "modified": "2022-05-24T17:36:09Z", "published": "2022-05-24T17:36:09Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-17438" }, { "type": "WEB", "url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01" }, { "type": "WEB", "url": "https://www.kb.cert.org/vuls/id/815128" } ], "schema_version": "1.4.0", "severity": [] }
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Sightings
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- 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.