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CVE-2020-10378

MEDIUM
5.5
CVSS Score
Published: June 25, 2020 at 06:22 PM UTC
Updated: June 17, 2026 at 02:47 AM UTC
3 products affected across 3 vendorsFedoraUbuntu LinuxPillow

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Severity
MEDIUM5.5
Exploit prediction
EPSS 1%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ubuntu Linux· Canonicalrubygems
95%
16.0418.0420.04
Fedora· Fedora Projectrpm
95%
3132
Pillow· Pythonpypi
95%
v < 7.1.0
Affected range stops below 7.1.0, so it looks safe — our inference, not a vendor statement

References (8)

x_refsource_MISCPatch
Source: [email protected]
https://github.com/python-pillow/Pillow/commit/6a83e4324738bb0452fbe8074a995b1c73f08de7#diff-9478f2787e3ae9668a15123b165c23ac
x_refsource_MISCBroken Link
Source: [email protected]
https://github.com/python-pillow/Pillow/commits/master/src/libImaging
x_refsource_MISCIssue TrackingPatch
Source: [email protected]
https://github.com/python-pillow/Pillow/pull/4538
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEBCPE4F2VHTIT6EZA2YZQZLPVDEBJGD/
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HOKHNWV2VS5GESY7IBD237E7C6T3I427/
x_refsource_MISCx_refsource_CONFIRMProduct
Source: [email protected]
https://pillow.readthedocs.io/en/stable/releasenotes/7.1.0.html
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/4430-1/
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/4430-2/

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-125

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