ghsa-45wv-rq2g-2vvj
Vulnerability from github
Published
2022-05-24 19:04
Modified
2022-05-24 19:04
Details
The eBPF RINGBUF bpf_ringbuf_reserve() function in the Linux kernel did not check that the allocated size was smaller than the ringbuf size, allowing an attacker to perform out-of-bounds writes within the kernel and therefore, arbitrary code execution. This issue was fixed via commit 4b81ccebaeee ("bpf, ringbuf: Deny reserve of buffers larger than ringbuf") (v5.13-rc4) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. It was introduced via 457f44363a88 ("bpf: Implement BPF ring buffer and verifier support for it") (v5.8-rc1).
{ "affected": [], "aliases": [ "CVE-2021-3489" ], "database_specific": { "cwe_ids": [ "CWE-787" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2021-06-04T02:15:00Z", "severity": "HIGH" }, "details": "The eBPF RINGBUF bpf_ringbuf_reserve() function in the Linux kernel did not check that the allocated size was smaller than the ringbuf size, allowing an attacker to perform out-of-bounds writes within the kernel and therefore, arbitrary code execution. This issue was fixed via commit 4b81ccebaeee (\"bpf, ringbuf: Deny reserve of buffers larger than ringbuf\") (v5.13-rc4) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. It was introduced via 457f44363a88 (\"bpf: Implement BPF ring buffer and verifier support for it\") (v5.8-rc1).", "id": "GHSA-45wv-rq2g-2vvj", "modified": "2022-05-24T19:04:07Z", "published": "2022-05-24T19:04:07Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3489" }, { "type": "WEB", "url": "https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/commit/?id=4b81ccebaeee885ab1aa1438133f2991e3a2b6ea" }, { "type": "WEB", "url": "https://security.netapp.com/advisory/ntap-20210716-0004" }, { "type": "WEB", "url": "https://ubuntu.com/security/notices/USN-4949-1" }, { "type": "WEB", "url": "https://ubuntu.com/security/notices/USN-4950-1" }, { "type": "WEB", "url": "https://www.openwall.com/lists/oss-security/2021/05/11/10" }, { "type": "WEB", "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-590" } ], "schema_version": "1.4.0", "severity": [] }
Loading…
Loading…
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.