CVE-2017-18017

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Source
https://cve.org/CVERecord?id=CVE-2017-18017
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-18017.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2017-18017
Downstream
Related
Published
2018-01-03T06:29:00Z
Modified
2026-02-24T11:30:44Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c in the Linux kernel before 4.11, and 4.9.x before 4.9.36, allows remote attackers to cause a denial of service (use-after-free and memory corruption) or possibly have unspecified other impact by leveraging the presence of xt_TCPMSS in an iptables action.

References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
2638fd0f92d4397884fd991d8f4925cb3f081901
Introduced
c470abd4fde40ea6a0846a2beab642a578c0b8cd
Fixed
a351e9b9fc24e982ec2f0e76379a49826036da12

Affected versions

v4.*
v4.10
v4.11-rc1
v4.11-rc2
v4.11-rc3

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-18017.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "258529677211135581736056381308471737043",
            "length":  2288
        },
        "id":  "CVE-2017-18017-67aac2b8",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git@2638fd0f92d4397884fd991d8f4925cb3f081901",
        "target":  {
            "file":  "net/netfilter/xt_TCPMSS.c",
            "function":  "tcpmss_mangle_packet"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "162258670710416702997586488041210628232",
                "148964180394642854167106965748630098256",
                "15984514308700478718840847737910083897",
                "232735794523049691887418241897364459863",
                "324155596358226543237301865408864531656",
                "230697090639336258677461166945617381557",
                "333144358156474064786568956147931082934"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2017-18017-eea7e029",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git@2638fd0f92d4397884fd991d8f4925cb3f081901",
        "target":  {
            "file":  "net/netfilter/xt_TCPMSS.c"
        }
    }
]