CVE-2020-12867

Exp

A NULL pointer dereference in sanei_epson_net_read in SANE Backends before 1.0.30 allows a malicious device connected to the same local network as the victim to cause a denial of service, aka GHSL-2020-075.

Published: 2020-06-01 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-12867 is rated Exploit Available (50/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.11%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2020-12867

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2020-12867

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-05-11 0.04% 0.11% +0.07%
2 2025-03-30 0.08% 0.04% -0.04%
3 2025-03-29 — 0.08% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-12867

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 3.6 [email protected]
2.1 2.0 LOW
AV:L/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.9 2.9 [email protected]

Weakness enumeration for CVE-2020-12867

OS Trackers for CVE-2020-12867

vendor priority summary link
alpine medium CVE-2020-12867: 1 source package rows (sane); 7 state rows across 7 repos (3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 7, open 0. https://security.alpinelinux.org/vuln/CVE-2020-12867
debian not yet assigned CVE-2020-12867 not yet assigned priority: Debian including 1 source packages (sane-backends), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2020-12867
redhat medium — https://access.redhat.com/security/cve/CVE-2020-12867
suse high CVE-2020-12867 severity important: SUSE including 40 source package names (libsane1-1.0.32-1.6, libsane1-32bit-1.0.32-1.6, …), 86 product×package rows across 46 product lines (HPE Helion OpenStack 8, SUSE Enterprise Storage 5, … (46 product lines)): Fixed 83, Known Not Affected 3. https://www.suse.com/security/cve/CVE-2020-12867/
ubuntu medium CVE-2020-12867 medium priority: Ubuntu including 1 source packages (sane-backends), 6 status rows across 6 suites (bionic, eoan, focal, trusty, upstream, xenial): released 4, DNE 1, ignored 1. https://ubuntu.com/security/CVE-2020-12867

Affected software / configurations for CVE-2020-12867

Vendor Product Version Raw CPE
sane-project sane_backends < 1.0.30 cpe:2.3:o:sane-project:sane_backends:*:*:*:*:*:*:*:*
fedoraproject fedora 32 cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
opensuse leap 15.1 cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
opensuse leap 15.2 cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
canonical ubuntu_linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 18.04 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 20.04 cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*

References for CVE-2020-12867

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00079.html Broken Link Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00003.html Broken Link Mailing List Third Party Advisory
https://alioth-lists.debian.net/pipermail/sane-announce/2020/000041.html Mailing List Third Party Advisory
https://gitlab.com/sane-project/backends/-/issues/279#issue-1-ghsl-2020-075-null-pointer-dereference-in-sanei_epson_net_read Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/08/msg00029.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/10/msg00010.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JWUVCHURVGGYBEUOBA4PLSNXJVBKHJYJ/
https://securitylab.github.com/advisories/GHSL-2020-075-libsane Exploit Third Party Advisory
https://usn.ubuntu.com/4470-1/ Third Party Advisory
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