CVE-2020-1983

A use after free vulnerability in ip_reass() in ip_input.c of libslirp 4.2.0 and prior releases allows crafted packets to cause a denial of service.

CVSS v3.0 6.5 MEDIUM
CVSS v2.0 2.1 LOW

6.5^/10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.0 / Impact : 4.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

2.1^/10

CVSS v2.0 : LOW

V2 Legend

Vector : AV:L/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://gitlab.freedesktop.org/slirp/libslirp/-/issues/20	Exploit Third Party Advisory
https://gitlab.freedesktop.org/slirp/libslirp/-/commit/9ac0371bb8c0a40f5d9f82a1c25129660e81df04	Patch Third Party Advisory
https://www.debian.org/security/2020/dsa-4665	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HWFD4MWV3YWIHVHSA2F7FKOLJFL4PHOX/	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NKT2MTSINE4NUPG5L6BYH6N23NBNITOL/	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00022.html	Mailing List Third Party Advisory
https://usn.ubuntu.com/4372-1/	Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00001.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00032.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:libslirp_project:libslirp:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:fedoraproject:fedora:31:::::::*
	cpe:2.3:o:fedoraproject:fedora:32:::::::*

Configuration 3 (hide)

OR	cpe:2.3:o:debian:debian_linux:8.0:::::::*
	cpe:2.3:o:debian:debian_linux:9.0:::::::*

Configuration 4 (hide)

cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*

Configuration 5 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:19.10:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:20.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:16.04::::esm:::

Information

Published : 2020-04-22 13:15

Updated : 2023-01-27 10:40

NVD link : CVE-2020-1983

Mitre link : CVE-2020-1983

JSON object : View

CWE

CWE-416

Use After Free

Products Affected

libslirp_project

libslirp

fedoraproject

fedora

canonical

ubuntu_linux

opensuse

leap

debian

debian_linux

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://gitlab.freedesktop.org/slirp/libslirp/-/issues/20", "name": "https://gitlab.freedesktop.org/slirp/libslirp/-/issues/20", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://gitlab.freedesktop.org/slirp/libslirp/-/commit/9ac0371bb8c0a40f5d9f82a1c25129660e81df04", "name": "https://gitlab.freedesktop.org/slirp/libslirp/-/commit/9ac0371bb8c0a40f5d9f82a1c25129660e81df04", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://www.debian.org/security/2020/dsa-4665", "name": "DSA-4665", "tags": ["Third Party Advisory"], "refsource": "DEBIAN"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HWFD4MWV3YWIHVHSA2F7FKOLJFL4PHOX/", "name": "FEDORA-2020-30c45be10c", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "FEDORA"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NKT2MTSINE4NUPG5L6BYH6N23NBNITOL/", "name": "FEDORA-2020-1608d52724", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "FEDORA"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00022.html", "name": "openSUSE-SU-2020:0636", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "SUSE"}, {"url": "https://usn.ubuntu.com/4372-1/", "name": "USN-4372-1", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00001.html", "name": "openSUSE-SU-2020:0756", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "SUSE"}, {"url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00032.html", "name": "[debian-lts-announce] 20200629 [SECURITY] [DLA 2262-1] qemu security update", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html", "name": "[debian-lts-announce] 20200726 [SECURITY] [DLA 2288-1] qemu security update", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "A use after free vulnerability in ip_reass() in ip_input.c of libslirp 4.2.0 and prior releases allows crafted packets to cause a denial of service."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-416"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2020-1983", "ASSIGNER": "psirt@paloaltonetworks.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 2.1, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "severity": "LOW", "acInsufInfo": false, "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 4.0, "exploitabilityScore": 2.0}}, "publishedDate": "2020-04-22T20:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:libslirp_project:libslirp:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "4.2.0"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2023-01-27T18:40Z"}

6.5 /10

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

2.1 /10

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

JSON object

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2.1^/10

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