CVE-2018-18281

Source
https://cve.org/CVERecord?id=CVE-2018-18281
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-18281.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-18281
Downstream
Related
Published
2018-10-30T18:29:00.737Z
Modified
2026-02-23T08:24:39.333574Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

Since Linux kernel version 3.2, the mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. This is fixed in the following kernel versions: 4.9.135, 4.14.78, 4.18.16, 4.19.

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
84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
eb66ae030829605d61fbef1909ce310e29f78821

Affected versions

v2.*
v2.6.12
v2.6.12-rc2
v2.6.12-rc3
v2.6.12-rc4
v2.6.12-rc5
v2.6.12-rc6
v2.6.13
v2.6.13-rc1
v2.6.13-rc2
v2.6.13-rc3
v2.6.13-rc4
v2.6.13-rc5
v2.6.13-rc6
v2.6.13-rc7
v2.6.14
v2.6.14-rc1
v2.6.14-rc2
v2.6.14-rc3
v2.6.14-rc4
v2.6.14-rc5
v2.6.15
v2.6.15-rc1
v2.6.15-rc2
v2.6.15-rc3
v2.6.15-rc4
v2.6.15-rc5
v2.6.15-rc6
v2.6.15-rc7
v2.6.16
v2.6.16-rc1
v2.6.16-rc2
v2.6.16-rc3
v2.6.16-rc4
v2.6.16-rc5
v2.6.16-rc6
v2.6.17
v2.6.17-rc1
v2.6.17-rc2
v2.6.17-rc3
v2.6.17-rc4
v2.6.17-rc5
v2.6.17-rc6
v2.6.18
v2.6.18-rc1
v2.6.18-rc2
v2.6.18-rc3
v2.6.18-rc4
v2.6.18-rc5
v2.6.18-rc6
v2.6.18-rc7
v2.6.19
v2.6.19-rc1
v2.6.19-rc2
v2.6.19-rc3
v2.6.19-rc4
v2.6.19-rc5
v2.6.19-rc6
v2.6.20
v2.6.20-rc1
v2.6.20-rc2
v2.6.20-rc3
v2.6.20-rc4
v2.6.20-rc5
v2.6.20-rc6
v2.6.20-rc7
v2.6.21
v2.6.21-rc1
v2.6.21-rc2
v2.6.21-rc3
v2.6.21-rc4
v2.6.21-rc5
v2.6.21-rc6
v2.6.21-rc7
v2.6.22
v2.6.22-rc1
v2.6.22-rc2
v2.6.22-rc3
v2.6.22-rc4
v2.6.22-rc5
v2.6.22-rc6
v2.6.22-rc7
v2.6.23
v2.6.23-rc1
v2.6.23-rc2
v2.6.23-rc3
v2.6.23-rc4
v2.6.23-rc5
v2.6.23-rc6
v2.6.23-rc7
v2.6.23-rc8
v2.6.23-rc9
v2.6.24
v2.6.24-rc1
v2.6.24-rc2
v2.6.24-rc3
v2.6.24-rc4
v2.6.24-rc5
v2.6.24-rc6
v2.6.24-rc7
v2.6.24-rc8
v2.6.25
v2.6.25-rc1
v2.6.25-rc2
v2.6.25-rc3
v2.6.25-rc4
v2.6.25-rc5
v2.6.25-rc6
v2.6.25-rc7
v2.6.25-rc8
v2.6.25-rc9
v2.6.26
v2.6.26-rc1
v2.6.26-rc2
v2.6.26-rc3
v2.6.26-rc4
v2.6.26-rc5
v2.6.26-rc6
v2.6.26-rc7
v2.6.26-rc8
v2.6.26-rc9
v2.6.27
v2.6.27-rc1
v2.6.27-rc2
v2.6.27-rc3
v2.6.27-rc4
v2.6.27-rc5
v2.6.27-rc6
v2.6.27-rc7
v2.6.27-rc8
v2.6.27-rc9
v2.6.28
v2.6.28-rc1
v2.6.28-rc2
v2.6.28-rc3
v2.6.28-rc4
v2.6.28-rc5
v2.6.28-rc6
v2.6.28-rc7
v2.6.28-rc8
v2.6.28-rc9
v2.6.29
v2.6.29-rc1
v2.6.29-rc2
v2.6.29-rc3
v2.6.29-rc4
v2.6.29-rc5
v2.6.29-rc6
v2.6.29-rc7
v2.6.29-rc8
v2.6.30
v2.6.30-rc1
v2.6.30-rc2
v2.6.30-rc3
v2.6.30-rc4
v2.6.30-rc5
v2.6.30-rc6
v2.6.30-rc7
v2.6.30-rc8
v2.6.31
v2.6.31-rc1
v2.6.31-rc2
v2.6.31-rc3
v2.6.31-rc4
v2.6.31-rc5
v2.6.31-rc6
v2.6.31-rc7
v2.6.31-rc8
v2.6.31-rc9
v2.6.32
v2.6.32-rc1
v2.6.32-rc2
v2.6.32-rc3
v2.6.32-rc4
v2.6.32-rc5
v2.6.32-rc6
v2.6.32-rc7
v2.6.32-rc8
v2.6.33
v2.6.33-rc1
v2.6.33-rc2
v2.6.33-rc3
v2.6.33-rc4
v2.6.33-rc5
v2.6.33-rc6
v2.6.33-rc7
v2.6.33-rc8
v2.6.34
v2.6.34-rc1
v2.6.34-rc2
v2.6.34-rc3
v2.6.34-rc4
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v2.6.35
v2.6.35-rc1
v2.6.35-rc2
v2.6.35-rc3
v2.6.35-rc4
v2.6.35-rc5
v2.6.35-rc6
v2.6.36
v2.6.36-rc1
v2.6.36-rc2
v2.6.36-rc3
v2.6.36-rc4
v2.6.36-rc5
v2.6.36-rc6
v2.6.36-rc7
v2.6.36-rc8
v2.6.37
v2.6.37-rc1
v2.6.37-rc2
v2.6.37-rc3
v2.6.37-rc4
v2.6.37-rc5
v2.6.37-rc6
v2.6.37-rc7
v2.6.37-rc8
v2.6.38
v2.6.38-rc1
v2.6.38-rc2
v2.6.38-rc3
v2.6.38-rc4
v2.6.38-rc5
v2.6.38-rc6
v2.6.38-rc7
v2.6.38-rc8
v2.6.39
v2.6.39-rc1
v2.6.39-rc2
v2.6.39-rc3
v2.6.39-rc4
v2.6.39-rc5
v2.6.39-rc6
v2.6.39-rc7
v3.*
v3.0
v3.0-rc1
v3.0-rc2
v3.0-rc3
v3.0-rc4
v3.0-rc5
v3.0-rc6
v3.0-rc7
v3.1
v3.1-rc1
v3.1-rc10
v3.1-rc2
v3.1-rc3
v3.1-rc4
v3.1-rc5
v3.1-rc6
v3.1-rc7
v3.1-rc8
v3.1-rc9
v3.10
v3.10-rc1
v3.10-rc2
v3.10-rc3
v3.10-rc4
v3.10-rc5
v3.10-rc6
v3.10-rc7
v3.11
v3.11-rc1
v3.11-rc2
v3.11-rc3
v3.11-rc4
v3.11-rc5
v3.11-rc6
v3.11-rc7
v3.12
v3.12-rc1
v3.12-rc2
v3.12-rc3
v3.12-rc4
v3.12-rc5
v3.12-rc6
v3.12-rc7
v3.13
v3.13-rc1
v3.13-rc2
v3.13-rc3
v3.13-rc4
v3.13-rc5
v3.13-rc6
v3.13-rc7
v3.13-rc8
v3.14
v3.14-rc1
v3.14-rc2
v3.14-rc3
v3.14-rc4
v3.14-rc5
v3.14-rc6
v3.14-rc7
v3.14-rc8
v3.15
v3.15-rc1
v3.15-rc2
v3.15-rc3
v3.15-rc4
v3.15-rc5
v3.15-rc6
v3.15-rc7
v3.15-rc8
v3.16
v3.16-rc1
v3.16-rc2
v3.16-rc3
v3.16-rc4
v3.16-rc5
v3.16-rc6
v3.16-rc7
v3.17
v3.17-rc1
v3.17-rc2
v3.17-rc3
v3.17-rc4
v3.17-rc5
v3.17-rc6
v3.17-rc7
v3.18
v3.18-rc1
v3.18-rc2
v3.18-rc3
v3.18-rc4
v3.18-rc5
v3.18-rc6
v3.18-rc7
v3.19
v3.19-rc1
v3.19-rc2
v3.19-rc3
v3.19-rc4
v3.19-rc5
v3.19-rc6
v3.19-rc7
v3.2
v3.2-rc1
v3.2-rc2
v3.2-rc3
v3.2-rc4
v3.2-rc5
v3.2-rc6
v3.2-rc7
v3.3
v3.3-rc1
v3.3-rc2
v3.3-rc3
v3.3-rc4
v3.3-rc5
v3.3-rc6
v3.3-rc7
v3.4
v3.4-rc1
v3.4-rc2
v3.4-rc3
v3.4-rc4
v3.4-rc5
v3.4-rc6
v3.4-rc7
v3.5
v3.5-rc1
v3.5-rc2
v3.5-rc3
v3.5-rc4
v3.5-rc5
v3.5-rc6
v3.5-rc7
v3.6
v3.6-rc1
v3.6-rc2
v3.6-rc3
v3.6-rc4
v3.6-rc5
v3.6-rc6
v3.6-rc7
v3.7
v3.7-rc1
v3.7-rc2
v3.7-rc3
v3.7-rc4
v3.7-rc5
v3.7-rc6
v3.7-rc7
v3.7-rc8
v3.8
v3.8-rc1
v3.8-rc2
v3.8-rc3
v3.8-rc4
v3.8-rc5
v3.8-rc6
v3.8-rc7
v3.9
v3.9-rc1
v3.9-rc2
v3.9-rc3
v3.9-rc4
v3.9-rc5
v3.9-rc6
v3.9-rc7
v3.9-rc8
v4.*
v4.0
v4.0-rc1
v4.0-rc2
v4.0-rc3
v4.0-rc4
v4.0-rc5
v4.0-rc6
v4.0-rc7
v4.1
v4.1-rc1
v4.1-rc2
v4.1-rc3
v4.1-rc4
v4.1-rc5
v4.1-rc6
v4.1-rc7
v4.1-rc8
v4.10
v4.10-rc1
v4.10-rc2
v4.10-rc3
v4.10-rc4
v4.10-rc5
v4.10-rc6
v4.10-rc7
v4.10-rc8
v4.11
v4.11-rc1
v4.11-rc2
v4.11-rc3
v4.11-rc4
v4.11-rc5
v4.11-rc6
v4.11-rc7
v4.11-rc8
v4.12
v4.12-rc1
v4.12-rc2
v4.12-rc3
v4.12-rc4
v4.12-rc5
v4.12-rc6
v4.12-rc7
v4.13
v4.13-rc1
v4.13-rc2
v4.13-rc3
v4.13-rc4
v4.13-rc5
v4.13-rc6
v4.13-rc7
v4.14
v4.14-rc1
v4.14-rc2
v4.14-rc3
v4.14-rc4
v4.14-rc5
v4.14-rc6
v4.14-rc7
v4.14-rc8
v4.15
v4.15-rc1
v4.15-rc2
v4.15-rc3
v4.15-rc4
v4.15-rc5
v4.15-rc6
v4.15-rc7
v4.15-rc8
v4.15-rc9
v4.16
v4.16-rc1
v4.16-rc2
v4.16-rc3
v4.16-rc4
v4.16-rc5
v4.16-rc6
v4.16-rc7
v4.17
v4.17-rc1
v4.17-rc2
v4.17-rc3
v4.17-rc4
v4.17-rc5
v4.17-rc6
v4.17-rc7
v4.18
v4.18-rc1
v4.18-rc2
v4.18-rc3
v4.18-rc4
v4.18-rc5
v4.18-rc6
v4.18-rc7
v4.18-rc8
v4.19-rc1
v4.19-rc2
v4.19-rc3
v4.19-rc4
v4.19-rc5
v4.19-rc6
v4.19-rc7
v4.19-rc8
v4.2
v4.2-rc1
v4.2-rc2
v4.2-rc3
v4.2-rc4
v4.2-rc5
v4.2-rc6
v4.2-rc7
v4.2-rc8
v4.3
v4.3-rc1
v4.3-rc2
v4.3-rc3
v4.3-rc4
v4.3-rc5
v4.3-rc6
v4.3-rc7
v4.4
v4.4-rc1
v4.4-rc2
v4.4-rc3
v4.4-rc4
v4.4-rc5
v4.4-rc6
v4.4-rc7
v4.4-rc8
v4.5
v4.5-rc1
v4.5-rc2
v4.5-rc3
v4.5-rc4
v4.5-rc5
v4.5-rc6
v4.5-rc7
v4.6
v4.6-rc1
v4.6-rc2
v4.6-rc3
v4.6-rc4
v4.6-rc5
v4.6-rc6
v4.6-rc7
v4.7
v4.7-rc1
v4.7-rc2
v4.7-rc3
v4.7-rc4
v4.7-rc5
v4.7-rc6
v4.7-rc7
v4.8
v4.8-rc1
v4.8-rc2
v4.8-rc3
v4.8-rc4
v4.8-rc5
v4.8-rc6
v4.8-rc7
v4.8-rc8
v4.9
v4.9-rc1
v4.9-rc2
v4.9-rc3
v4.9-rc4
v4.9-rc5
v4.9-rc6
v4.9-rc7
v4.9-rc8

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-18281.json"
vanir_signatures
[
    {
        "id": "CVE-2018-18281-0309df8a",
        "target": {
            "file": "mm/mremap.c"
        },
        "signature_version": "v1",
        "deprecated": false,
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git@eb66ae030829605d61fbef1909ce310e29f78821",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
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                "272029714189524221852225264427260721885"
            ]
        },
        "signature_type": "Line"
    },
    {
        "id": "CVE-2018-18281-6ce39555",
        "target": {
            "function": "move_huge_pmd",
            "file": "mm/huge_memory.c"
        },
        "signature_version": "v1",
        "deprecated": false,
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git@eb66ae030829605d61fbef1909ce310e29f78821",
        "digest": {
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            "length": 1082.0
        },
        "signature_type": "Function"
    },
    {
        "id": "CVE-2018-18281-947a0873",
        "target": {
            "function": "move_page_tables",
            "file": "mm/mremap.c"
        },
        "signature_version": "v1",
        "deprecated": false,
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git@eb66ae030829605d61fbef1909ce310e29f78821",
        "digest": {
            "function_hash": "69244523805035784381161506978611102319",
            "length": 1383.0
        },
        "signature_type": "Function"
    },
    {
        "id": "CVE-2018-18281-a1166281",
        "target": {
            "file": "mm/huge_memory.c"
        },
        "signature_version": "v1",
        "deprecated": false,
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git@eb66ae030829605d61fbef1909ce310e29f78821",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
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                "120994650916595091677519921713665546802",
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                "105487671328989618154227675836645946621",
                "236142527205153903254716790534107224404",
                "104245626346097184097821545089092772426",
                "298430277176394943164804859823178975795"
            ]
        },
        "signature_type": "Line"
    },
    {
        "id": "CVE-2018-18281-b02ee72c",
        "target": {
            "function": "move_ptes",
            "file": "mm/mremap.c"
        },
        "signature_version": "v1",
        "deprecated": false,
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git@eb66ae030829605d61fbef1909ce310e29f78821",
        "digest": {
            "function_hash": "337191495463000318785490423459463399412",
            "length": 1148.0
        },
        "signature_type": "Function"
    },
    {
        "id": "CVE-2018-18281-cac99dbf",
        "target": {
            "file": "include/linux/huge_mm.h"
        },
        "signature_version": "v1",
        "deprecated": false,
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git@eb66ae030829605d61fbef1909ce310e29f78821",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "317630906680280894105705812353324819021",
                "100255012787525455777675353191142935077",
                "331266913040750049742698081558118214147",
                "149743492649637961553254714989769509735"
            ]
        },
        "signature_type": "Line"
    }
]

Git / gitlab.com/gnutls/libtasn1

Affected ranges

Type
GIT
Repo
https://gitlab.com/gnutls/libtasn1
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed

Affected versions

4.*
4.16.0
Other
gnutls_0_5_0
gnutls_0_5_1
libasn1_0_1_0
libtasn1-0-3-2
libtasn1_0_1_2
libtasn1_0_2_0
libtasn1_0_2_1
libtasn1_0_2_10
libtasn1_0_2_11
libtasn1_0_2_12
libtasn1_0_2_13
libtasn1_0_2_14
libtasn1_0_2_15
libtasn1_0_2_16
libtasn1_0_2_17
libtasn1_0_2_18
libtasn1_0_2_2
libtasn1_0_2_3
libtasn1_0_2_4
libtasn1_0_2_5
libtasn1_0_2_6
libtasn1_0_2_7
libtasn1_0_2_8
libtasn1_0_2_9
libtasn1_0_3_0
libtasn1_0_3_1
libtasn1_0_3_10
libtasn1_0_3_2
libtasn1_0_3_3
libtasn1_0_3_4
libtasn1_0_3_5
libtasn1_0_3_6
libtasn1_0_3_7
libtasn1_0_3_8
libtasn1_0_3_9
libtasn1_1_0
libtasn1_1_1
libtasn1_1_2
libtasn1_1_3
libtasn1_1_4
libtasn1_1_5
libtasn1_1_6
libtasn1_2_0
libtasn1_2_1
libtasn1_2_10
libtasn1_2_11
libtasn1_2_12
libtasn1_2_13
libtasn1_2_2
libtasn1_2_3
libtasn1_2_4
libtasn1_2_5
libtasn1_2_6
libtasn1_2_7
libtasn1_2_8
libtasn1_2_9
libtasn1_3_0
libtasn1_3_1
libtasn1_3_2
libtasn1_3_3
libtasn1_3_4
libtasn1_3_5
libtasn1_3_6
libtasn1_4_0
libtasn1_4_1
libtasn1_4_11
libtasn1_4_12
libtasn1_4_13
libtasn1_4_14
libtasn1_4_15_0
libtasn1_4_16_0
libtasn1_4_2
libtasn1_4_3
libtasn1_4_4
libtasn1_4_5
libtasn1_4_6
libtasn1_4_8
libtasn1_4_9
libtasn1_after_rename
libtasn1_4.*
libtasn1_4.7
v4.*
v4.16.0
v4.17.0
v4.18.0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-18281.json"