CVE-2020-7039

Source
https://cve.org/CVERecord?id=CVE-2020-7039
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-7039.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-7039
Downstream
ALSA (3)
DEBIAN (1)
openSUSE (2)
RHBA (1)
RHSA (15)
RLSA (3)
SUSE (9)
UBUNTU (1)
Related
Published
2020-01-16T23:15:12Z
Modified
2026-10-24T14:12:07Z
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

tcp_emu in tcp_subr.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.

Database specific
{
    "unresolved_ranges": [
        {
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "extracted_events": [
                {
                    "range": [
                        {
                            "introduced": "8.0"
                        },
                        {
                            "last_affected": "8.0"
                        },
                        {
                            "introduced": "9.0"
                        },
                        {
                            "last_affected": "9.0"
                        }
                    ],
                    "source": "CPE_STRING"
                }
            ],
            "vendor_product": "debian:debian_linux"
        },
        {
            "cpes": [
                "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*"
            ],
            "extracted_events": [
                {
                    "range": [
                        {
                            "introduced": "15.1"
                        },
                        {
                            "last_affected": "15.1"
                        }
                    ],
                    "source": "CPE_STRING"
                }
            ],
            "vendor_product": "opensuse:leap"
        }
    ]
}
References

Affected packages

Git
github.com/qemu/qemu

Affected ranges

Type
GIT
Repo
https://github.com/qemu/qemu
Events
Database specific
Show details
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:qemu:qemu:4.2.0:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "4.2.0"
                },
                {
                    "last_affected": "4.2.0"
                }
            ],
            "source": "CPE_STRING"
        }
    ]
}

Affected versions

4.*
4.2.0
v4.*
v4.2.0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-7039.json"
github.com/spring-projects/spring-framework

Affected ranges

Type
GIT
Repo
https://github.com/spring-projects/spring-framework
Events
Database specific
Show details
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:libslirp_project:libslirp:4.1.0:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "4.1.0"
                },
                {
                    "last_affected": "4.1.0"
                }
            ],
            "source": "CPE_STRING"
        }
    ]
}

Affected versions

4.*
4.1.0
v4.*
v4.1.0.RELEASE

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-7039.json"
gitlab.com/qemu-project/qemu

Affected ranges

Type
GIT
Repo
https://gitlab.com/qemu-project/qemu
Events
Database specific
Show details
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:qemu:qemu:4.2.0:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "4.2.0"
                },
                {
                    "last_affected": "4.2.0"
                }
            ],
            "source": "CPE_STRING"
        }
    ]
}

Affected versions

4.*
4.2.0
v4.*
v4.2.0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-7039.json"
gitlab.freedesktop.org/slirp/libslirp

Affected ranges

Type
GIT
Repo
https://gitlab.freedesktop.org/slirp/libslirp
Events
Database specific
Show details
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:libslirp_project:libslirp:4.1.0:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "4.1.0"
                },
                {
                    "last_affected": "4.1.0"
                }
            ],
            "source": "CPE_STRING"
        },
        {
            "range": [
                {
                    "fixed": "2655fffed7a9e765bcb4701dd876e9dab975f289"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "range": [
                {
                    "fixed": "82ebe9c370a0e2970fb5695aa19aa5214a6a1c80"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "range": [
                {
                    "fixed": "ce131029d6d4a405cb7d3ac6716d03e58fb4a5d9"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

4.*
4.1.0
v4.*
v4.1.0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-7039.json"
vanir_signatures
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        "source": "https://gitlab.freedesktop.org/slirp/libslirp@82ebe9c370a0e2970fb5695aa19aa5214a6a1c80",
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        "source": "https://gitlab.freedesktop.org/slirp/libslirp@82ebe9c370a0e2970fb5695aa19aa5214a6a1c80",
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            "file": "src/tcp_subr.c",
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vanir_signatures_modified
"2026-10-24T14:12:07Z"