gsd-2016-6828
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
The tcp_check_send_head function in include/net/tcp.h in the Linux kernel before 4.7.5 does not properly maintain certain SACK state after a failed data copy, which allows local users to cause a denial of service (tcp_xmit_retransmit_queue use-after-free and system crash) via a crafted SACK option.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2016-6828",
"description": "The tcp_check_send_head function in include/net/tcp.h in the Linux kernel before 4.7.5 does not properly maintain certain SACK state after a failed data copy, which allows local users to cause a denial of service (tcp_xmit_retransmit_queue use-after-free and system crash) via a crafted SACK option.",
"id": "GSD-2016-6828",
"references": [
"https://www.suse.com/security/cve/CVE-2016-6828.html",
"https://www.debian.org/security/2016/dsa-3659",
"https://access.redhat.com/errata/RHSA-2017:0113",
"https://access.redhat.com/errata/RHSA-2017:0091",
"https://access.redhat.com/errata/RHSA-2017:0086",
"https://access.redhat.com/errata/RHSA-2017:0036",
"https://ubuntu.com/security/CVE-2016-6828",
"https://advisories.mageia.org/CVE-2016-6828.html",
"https://alas.aws.amazon.com/cve/html/CVE-2016-6828.html",
"https://linux.oracle.com/cve/CVE-2016-6828.html",
"https://packetstormsecurity.com/files/cve/CVE-2016-6828"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2016-6828"
],
"details": "The tcp_check_send_head function in include/net/tcp.h in the Linux kernel before 4.7.5 does not properly maintain certain SACK state after a failed data copy, which allows local users to cause a denial of service (tcp_xmit_retransmit_queue use-after-free and system crash) via a crafted SACK option.",
"id": "GSD-2016-6828",
"modified": "2023-12-13T01:21:23.106216Z",
"schema_version": "1.4.0"
}
},
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}
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"name": "http://www.securityfocus.com/bid/92452",
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"url": "https://github.com/torvalds/linux/commit/bb1fceca22492109be12640d49f5ea5a544c6bb4"
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{
"name": "https://marcograss.github.io/security/linux/2016/08/18/cve-2016-6828-linux-kernel-tcp-uaf.html",
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"url": "https://marcograss.github.io/security/linux/2016/08/18/cve-2016-6828-linux-kernel-tcp-uaf.html"
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"nvd.nist.gov": {
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"versionEndIncluding": "4.7.4",
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}
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"references": {
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"name": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bb1fceca22492109be12640d49f5ea5a544c6bb4",
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{
"name": "[oss-security] 20160815 Linux tcp_xmit_retransmit_queue use after free on 4.8-rc1 / master",
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"url": "http://www.openwall.com/lists/oss-security/2016/08/15/1"
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"url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5"
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{
"name": "https://bugzilla.redhat.com/show_bug.cgi?id=1367091",
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"url": "https://marcograss.github.io/security/linux/2016/08/18/cve-2016-6828-linux-kernel-tcp-uaf.html"
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]
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},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 4.9,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 6.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.0"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6
}
},
"lastModifiedDate": "2023-02-12T23:25Z",
"publishedDate": "2016-10-16T21:59Z"
}
}
}
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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.