ghsa-7j8w-38v5-7qqp
Vulnerability from github
Published
2022-05-24 16:53
Modified
2022-05-24 16:53
Details
In the Linux kernel, a certain net/ipv4/tcp_output.c change, which was properly incorporated into 4.16.12, was incorrectly backported to the earlier longterm kernels, introducing a new vulnerability that was potentially more severe than the issue that was intended to be fixed by backporting. Specifically, by adding to a write queue between disconnection and re-connection, a local attacker can trigger multiple use-after-free conditions. This can result in a kernel crash, or potentially in privilege escalation. NOTE: this affects (for example) Linux distributions that use 4.9.x longterm kernels before 4.9.190 or 4.14.x longterm kernels before 4.14.139.
{ "affected": [], "aliases": [ "CVE-2019-15239" ], "database_specific": { "cwe_ids": [], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2019-08-20T08:15:00Z", "severity": "HIGH" }, "details": "In the Linux kernel, a certain net/ipv4/tcp_output.c change, which was properly incorporated into 4.16.12, was incorrectly backported to the earlier longterm kernels, introducing a new vulnerability that was potentially more severe than the issue that was intended to be fixed by backporting. Specifically, by adding to a write queue between disconnection and re-connection, a local attacker can trigger multiple use-after-free conditions. This can result in a kernel crash, or potentially in privilege escalation. NOTE: this affects (for example) Linux distributions that use 4.9.x longterm kernels before 4.9.190 or 4.14.x longterm kernels before 4.14.139.", "id": "GHSA-7j8w-38v5-7qqp", "modified": "2022-05-24T16:53:58Z", "published": "2022-05-24T16:53:58Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-15239" }, { "type": "WEB", "url": "https://access.redhat.com/errata/RHSA-2019:3978" }, { "type": "WEB", "url": "https://access.redhat.com/errata/RHSA-2019:3979" }, { "type": "WEB", "url": "https://access.redhat.com/errata/RHSA-2020:0027" }, { "type": "WEB", "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7f582b248d0a86bae5788c548d7bb5bca6f7691a" }, { "type": "WEB", "url": "https://lore.kernel.org/stable/41a61a2f87691d2bc839f26cdfe6f5ff2f51e472.camel@decadent.org.uk" }, { "type": "WEB", "url": "https://pulsesecurity.co.nz/advisories/linux-kernel-4.9-tcpsocketsuaf" }, { "type": "WEB", "url": "https://salsa.debian.org/kernel-team/kernel-sec/blob/f6273af2d956a87296b6b60379d0a186c9be4bbc/active/CVE-2019-15239" }, { "type": "WEB", "url": "https://www.debian.org/security/2019/dsa-4497" }, { "type": "WEB", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html" }, { "type": "WEB", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html" } ], "schema_version": "1.4.0", "severity": [] }
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Sightings
Author | Source | Type | Date |
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Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- 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.