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Vulnerability details: VCID-qdgq-uetp-huet
Vulnerability ID VCID-qdgq-uetp-huet
Aliases BIT-pillow-2020-10378
CVE-2020-10378
GHSA-3xv8-3j54-hgrp
PYSEC-2020-77
Summary In libImaging/PcxDecode.c in Pillow before 7.1.0, an out-of-bounds read can occur when reading PCX files where state->shuffle is instructed to read beyond state->buffer.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-125 Out-of-bounds Read
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 5.9 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-10378.json
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
epss 0.00243 https://api.first.org/data/v1/epss?cve=CVE-2020-10378
cvssv3.1 5.5 https://github.com/advisories/GHSA-3xv8-3j54-hgrp
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-3xv8-3j54-hgrp
generic_textual HIGH https://github.com/advisories/GHSA-3xv8-3j54-hgrp
cvssv3.1 5.5 https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2020-77.yaml
generic_textual HIGH https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2020-77.yaml
cvssv3.1 5.5 https://github.com/pypa/advisory-db/blob/7872b0a91b4d980f749e6d75a81f8cc1af32829f/vulns/pillow/PYSEC-2020-77.yaml
generic_textual HIGH https://github.com/pypa/advisory-db/blob/7872b0a91b4d980f749e6d75a81f8cc1af32829f/vulns/pillow/PYSEC-2020-77.yaml
cvssv3.1 5.5 https://github.com/python-pillow/Pillow
generic_textual HIGH https://github.com/python-pillow/Pillow
cvssv3.1 5.5 https://github.com/python-pillow/Pillow/commit/124f4bb591e16212605d0e41c413ed53e242cba2
generic_textual HIGH https://github.com/python-pillow/Pillow/commit/124f4bb591e16212605d0e41c413ed53e242cba2
cvssv3.1 5.5 https://github.com/python-pillow/Pillow/commit/6a83e4324738bb0452fbe8074a995b1c73f08de7#diff-9478f2787e3ae9668a15123b165c23ac
generic_textual HIGH https://github.com/python-pillow/Pillow/commit/6a83e4324738bb0452fbe8074a995b1c73f08de7#diff-9478f2787e3ae9668a15123b165c23ac
cvssv3.1 5.5 https://github.com/python-pillow/Pillow/commits/master/src/libImaging
generic_textual HIGH https://github.com/python-pillow/Pillow/commits/master/src/libImaging
cvssv3.1 5.5 https://github.com/python-pillow/Pillow/issues/4750
generic_textual HIGH https://github.com/python-pillow/Pillow/issues/4750
cvssv3.1 5.5 https://github.com/python-pillow/Pillow/pull/4538
generic_textual HIGH https://github.com/python-pillow/Pillow/pull/4538
cvssv3.1 5.5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BEBCPE4F2VHTIT6EZA2YZQZLPVDEBJGD
generic_textual HIGH https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BEBCPE4F2VHTIT6EZA2YZQZLPVDEBJGD
cvssv3.1 5.5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HOKHNWV2VS5GESY7IBD237E7C6T3I427
generic_textual HIGH https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HOKHNWV2VS5GESY7IBD237E7C6T3I427
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2020-10378
cvssv3.1 5.5 https://nvd.nist.gov/vuln/detail/CVE-2020-10378
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2020-10378
cvssv3.1 5.5 https://pillow.readthedocs.io/en/stable/releasenotes/6.2.3.html
generic_textual HIGH https://pillow.readthedocs.io/en/stable/releasenotes/6.2.3.html
cvssv3.1 5.5 https://pillow.readthedocs.io/en/stable/releasenotes/7.1.0.html
generic_textual HIGH https://pillow.readthedocs.io/en/stable/releasenotes/7.1.0.html
cvssv3.1 5.5 https://usn.ubuntu.com/4430-1
generic_textual HIGH https://usn.ubuntu.com/4430-1
cvssv3.1 5.5 https://usn.ubuntu.com/4430-2
generic_textual HIGH https://usn.ubuntu.com/4430-2
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-10378.json
https://api.first.org/data/v1/epss?cve=CVE-2020-10378
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10378
https://github.com/advisories/GHSA-3xv8-3j54-hgrp
https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2020-77.yaml
https://github.com/pypa/advisory-db/blob/7872b0a91b4d980f749e6d75a81f8cc1af32829f/vulns/pillow/PYSEC-2020-77.yaml
https://github.com/python-pillow/Pillow
https://github.com/python-pillow/Pillow/commit/124f4bb591e16212605d0e41c413ed53e242cba2
https://github.com/python-pillow/Pillow/commit/6a83e4324738bb0452fbe8074a995b1c73f08de7#diff-9478f2787e3ae9668a15123b165c23ac
https://github.com/python-pillow/Pillow/commits/master/src/libImaging
https://github.com/python-pillow/Pillow/issues/4750
https://github.com/python-pillow/Pillow/pull/4538
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEBCPE4F2VHTIT6EZA2YZQZLPVDEBJGD/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HOKHNWV2VS5GESY7IBD237E7C6T3I427/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BEBCPE4F2VHTIT6EZA2YZQZLPVDEBJGD
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BEBCPE4F2VHTIT6EZA2YZQZLPVDEBJGD/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HOKHNWV2VS5GESY7IBD237E7C6T3I427
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HOKHNWV2VS5GESY7IBD237E7C6T3I427/
https://nvd.nist.gov/vuln/detail/CVE-2020-10378
https://pillow.readthedocs.io/en/stable/releasenotes/6.2.3.html
https://pillow.readthedocs.io/en/stable/releasenotes/7.1.0.html
https://usn.ubuntu.com/4430-1
https://usn.ubuntu.com/4430-1/
https://usn.ubuntu.com/4430-2
https://usn.ubuntu.com/4430-2/
1852832 https://bugzilla.redhat.com/show_bug.cgi?id=1852832
cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
RHSA-2021:0420 https://access.redhat.com/errata/RHSA-2021:0420
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-10378.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://github.com/advisories/GHSA-3xv8-3j54-hgrp
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2020-77.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://github.com/pypa/advisory-db/blob/7872b0a91b4d980f749e6d75a81f8cc1af32829f/vulns/pillow/PYSEC-2020-77.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://github.com/python-pillow/Pillow
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://github.com/python-pillow/Pillow/commit/124f4bb591e16212605d0e41c413ed53e242cba2
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://github.com/python-pillow/Pillow/commit/6a83e4324738bb0452fbe8074a995b1c73f08de7#diff-9478f2787e3ae9668a15123b165c23ac
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://github.com/python-pillow/Pillow/commits/master/src/libImaging
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://github.com/python-pillow/Pillow/issues/4750
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://github.com/python-pillow/Pillow/pull/4538
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BEBCPE4F2VHTIT6EZA2YZQZLPVDEBJGD
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HOKHNWV2VS5GESY7IBD237E7C6T3I427
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-10378
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-10378
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://pillow.readthedocs.io/en/stable/releasenotes/6.2.3.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://pillow.readthedocs.io/en/stable/releasenotes/7.1.0.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://usn.ubuntu.com/4430-1
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://usn.ubuntu.com/4430-2
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.47597
EPSS Score 0.00243
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:04.160192+00:00 Pypa Importer Import https://github.com/pypa/advisory-database/blob/main/vulns/pillow/PYSEC-2020-77.yaml 37.0.0