CVE-2020-7039

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Source
https://cve.org/CVERecord?id=CVE-2020-7039
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-7039.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-7039
Downstream
Related
Published
2020-01-16T23:15:12.190Z
Modified
2026-03-17T06:54:27.236610Z
Severity
  • 5.6 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
Summary
[none]
Details

tcpemu in tcpsubr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanages memory, as demonstrated by IRC DCC commands in EMU_IRC. This can cause a heap-based buffer overflow or other out-of-bounds access which can lead to a DoS or potential execute arbitrary code.

References

Affected packages

Git / github.com/qemu/qemu

Affected ranges

Type
GIT
Repo
https://github.com/qemu/qemu
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
9e06029aea3b2eca1d5261352e695edc1e7d7b8b
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
b0ca999a43a22b38158a222233d3f5881648bb4f
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
c1eb2ddf0f8075faddc5f7c3d39feae3e8e9d6b4
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
c25df57ae8f9fe1c72eee2dab37d76d904ac382e
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1.0"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.2.0"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "8.0"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0"
        }
    ]
}
Type
GIT
Repo
https://gitlab.freedesktop.org/slirp/libslirp
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
2655fffed7a9e765bcb4701dd876e9dab975f289
Fixed
82ebe9c370a0e2970fb5695aa19aa5214a6a1c80
Fixed
ce131029d6d4a405cb7d3ac6716d03e58fb4a5d9

Affected versions

Other
release_0_10_0
release_0_10_1
release_0_10_2
release_0_6_0
release_0_6_1
release_0_7_0
release_0_7_1
release_0_8_1
release_0_8_2
release_0_9_0
release_0_9_1
v0.*
v0.1.0
v0.1.1
v0.1.3
v0.1.4
v0.1.5
v0.1.6
v0.10.0
v0.10.1
v0.10.2
v0.10.3
v0.10.4
v0.10.5
v0.10.6
v0.11.0-rc0
v0.12.0
v0.12.0-rc0
v0.12.0-rc1
v0.12.0-rc2
v0.12.1
v0.13.0
v0.13.0-rc0
v0.13.0-rc1
v0.13.0-rc2
v0.13.0-rc3
v0.14.0-rc0
v0.14.0-rc1
v0.15.0
v0.15.0-rc0
v0.15.0-rc1
v0.15.0-rc2
v0.15.1
v0.2.0
v0.3.0
v0.4.0
v0.4.1
v0.4.2
v0.4.3
v0.4.4
v0.5.0
v0.6.0
v0.6.1
v0.7.0
v0.7.1
v0.8.1
v0.8.2
v0.9.0
v0.9.1
v1.*
v1.0
v1.0-rc0
v1.0-rc1
v1.0-rc2
v1.0-rc3
v1.0-rc4
v1.0.1
v1.1-rc0
v1.1-rc1
v1.1-rc2
v1.1.0
v1.1.0-rc2
v1.1.0-rc3
v1.1.0-rc4
v1.1.1
v1.1.2
v1.2.0
v1.2.0-rc0
v1.2.0-rc1
v1.2.0-rc2
v1.2.0-rc3
v1.3.0
v1.3.0-rc0
v1.3.0-rc1
v1.3.0-rc2
v1.3.1
v1.4.0
v1.4.0-rc0
v1.4.0-rc1
v1.4.0-rc2
v1.5.0
v1.5.0-rc0
v1.5.0-rc1
v1.5.0-rc2
v1.5.0-rc3
v1.5.1
v1.5.2
v1.5.3
v1.6.0
v1.6.0-rc0
v1.6.0-rc1
v1.6.0-rc2
v1.6.0-rc3
v1.6.1
v1.6.2
v1.7.0
v1.7.0-rc0
v1.7.0-rc1
v1.7.0-rc2
v1.7.1
v1.7.2
v2.*
v2.0.0
v2.0.0-rc0
v2.0.0-rc1
v2.0.0-rc2
v2.0.0-rc3
v2.0.1
v2.0.2
v2.1.0
v2.1.0-rc0
v2.1.0-rc1
v2.1.0-rc2
v2.1.0-rc3
v2.1.0-rc4
v2.1.0-rc5
v2.1.1
v2.10.0
v2.10.0-rc0
v2.10.0-rc1
v2.10.0-rc2
v2.10.0-rc3
v2.10.0-rc4
v2.11.0
v2.11.0-rc0
v2.11.0-rc1
v2.11.0-rc2
v2.11.0-rc3
v2.11.0-rc4
v2.11.0-rc5
v2.11.1
v2.11.2
v2.12.0
v2.12.0-rc0
v2.12.0-rc1
v2.12.0-rc2
v2.12.0-rc3
v2.12.0-rc4
v2.12.1
v2.2.0
v2.2.0-rc0
v2.2.0-rc1
v2.2.0-rc2
v2.2.0-rc3
v2.2.0-rc4
v2.2.0-rc5
v2.2.1
v2.3.0
v2.3.0-rc0
v2.3.0-rc1
v2.3.0-rc2
v2.3.0-rc3
v2.3.0-rc4
v2.3.1
v2.4.0
v2.4.0-rc0
v2.4.0-rc1
v2.4.0-rc2
v2.4.0-rc3
v2.4.0-rc4
v2.4.0.1
v2.5.0
v2.5.0-rc0
v2.5.0-rc1
v2.5.0-rc2
v2.5.0-rc3
v2.5.0-rc4
v2.5.1
v2.5.1.1
v2.6.0
v2.6.0-rc0
v2.6.0-rc1
v2.6.0-rc2
v2.6.0-rc3
v2.6.0-rc4
v2.6.0-rc5
v2.7.0
v2.7.0-rc0
v2.7.0-rc1
v2.7.0-rc2
v2.7.0-rc3
v2.7.0-rc4
v2.7.0-rc5
v2.8.0
v2.8.0-rc0
v2.8.0-rc1
v2.8.0-rc2
v2.8.0-rc3
v2.8.0-rc4
v2.8.1
v2.8.1.1
v2.9.0
v2.9.0-rc0
v2.9.0-rc1
v2.9.0-rc2
v2.9.0-rc3
v2.9.0-rc4
v2.9.0-rc5
v3.*
v3.0.0
v3.0.0-rc0
v3.0.0-rc1
v3.0.0-rc2
v3.0.0-rc3
v3.0.0-rc4
v3.1.0
v3.1.0-rc0
v3.1.0-rc1
v3.1.0-rc2
v3.1.0-rc3
v3.1.0-rc4
v3.1.0-rc5
v4.*
v4.0.0
v4.0.0-rc0
v4.0.0-rc1
v4.0.0-rc2
v4.0.0-rc3
v4.0.0-rc4
v4.1.0
v4.1.0-rc0
v4.1.0-rc1
v4.1.0-rc2
v4.1.0-rc3
v4.1.0-rc4
v4.1.0-rc5

Database specific

unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "15.1"
            }
        ]
    }
]
source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-7039.json"
vanir_signatures 
[
    {
        "id": "CVE-2020-7039-2a648928",
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "25387690005046493626353118587777793358",
                "160309386740755709201610707267999592638",
                "330487027014476331133156449357976513666",
                "99653444036453149687853936484662716155",
                "301088068340020129739283949698391890860",
                "187567610230749590157484504403283356975",
                "100127496917207286311847526121443219979",
                "55028710168073066391953858696394065939",
                "126881792079116541005255363469384401593",
                "88332501612171860209272905662950217016",
                "186687794306581204807428526777309569466",
                "29641077412104432210341758818222247178",
                "88108022677456657889450813356683575088",
                "236097773785422097267213823434495860007"
            ]
        },
        "source": "https://gitlab.freedesktop.org/slirp/libslirp@82ebe9c370a0e2970fb5695aa19aa5214a6a1c80",
        "target": {
            "file": "src/tcp_subr.c"
        },
        "signature_type": "Line",
        "signature_version": "v1"
    },
    {
        "id": "CVE-2020-7039-66dd0ac8",
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "241284285325634071912458277399824585701",
                "101024470289889841703992026745821739860",
                "46610385591659169243295099148013167523",
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                "3207942234795332521456043419559591854",
                "95411540399998749707763516469279061285",
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                "204887157760773484595687427919028940019",
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                "111803825195004922490986731124225859938"
            ]
        },
        "source": "https://gitlab.freedesktop.org/slirp/libslirp@ce131029d6d4a405cb7d3ac6716d03e58fb4a5d9",
        "target": {
            "file": "src/tcp_subr.c"
        },
        "signature_type": "Line",
        "signature_version": "v1"
    },
    {
        "id": "CVE-2020-7039-6b9a8895",
        "deprecated": false,
        "digest": {
            "length": 6641.0,
            "function_hash": "16394558136358550035582286927942919055"
        },
        "source": "https://gitlab.freedesktop.org/slirp/libslirp@82ebe9c370a0e2970fb5695aa19aa5214a6a1c80",
        "target": {
            "function": "tcp_emu",
            "file": "src/tcp_subr.c"
        },
        "signature_type": "Function",
        "signature_version": "v1"
    },
    {
        "id": "CVE-2020-7039-8a519e5a",
        "deprecated": false,
        "digest": {
            "length": 6632.0,
            "function_hash": "221627384635618976683759339920942865720"
        },
        "source": "https://gitlab.freedesktop.org/slirp/libslirp@ce131029d6d4a405cb7d3ac6716d03e58fb4a5d9",
        "target": {
            "function": "tcp_emu",
            "file": "src/tcp_subr.c"
        },
        "signature_type": "Function",
        "signature_version": "v1"
    },
    {
        "id": "CVE-2020-7039-ab5b2a67",
        "deprecated": false,
        "digest": {
            "length": 6508.0,
            "function_hash": "140651076775259481436786107058209110775"
        },
        "source": "https://gitlab.freedesktop.org/slirp/libslirp@2655fffed7a9e765bcb4701dd876e9dab975f289",
        "target": {
            "function": "tcp_emu",
            "file": "src/tcp_subr.c"
        },
        "signature_type": "Function",
        "signature_version": "v1"
    },
    {
        "id": "CVE-2020-7039-b7d4660f",
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
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                "32139479471153033922636960518668746078"
            ]
        },
        "source": "https://gitlab.freedesktop.org/slirp/libslirp@2655fffed7a9e765bcb4701dd876e9dab975f289",
        "target": {
            "file": "src/tcp_subr.c"
        },
        "signature_type": "Line",
        "signature_version": "v1"
    }
]