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Fencer Vulns
high 8.8

CVE-2020-5310 json

Integer overflow in Pillow

published 2020-01-03 6 y ago modified 2026-09-08 2 mo ago also BIT-pillow-2020-5310 , EUVD-2020-0134 , GHSA-vcqg-3p29-xw73 , PYSEC-2020-81

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.0%
EPSS 2.0% chance of exploitation in 30 days, percentile 80%
public exploits
0
none known

Summary

libImaging/TiffDecode.c in Pillow before 6.2.2 has a TIFF decoding integer overflow, related to realloc.

Patch / fix

  • pypi pillow 6.2.2
  • bitnami pillow 6.2.2
  • python pillow 6.2.2
  • pillow Debian 14, Debian 13, Debian 12 7.0.0-1

debian advisories DEBIAN-CVE-2020-5310

  • py3-pillow Alpine 3.24, Alpine 3.23, Alpine 3.22 +10 more 6.2.2-r0

alpine advisories ALPINE-CVE-2020-5310

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-5310 updated cvss 8.1

python-pillow: Integer overflow leading to buffer overflow in ImagingLibTiffDecode

  • Red Hat Quay v3 quay/quay-rhel8 v3.4.0-51, quay/clair-rhel8 v3.4.0-25, quay/quay-builder-rhel8 v3.4.0-18, quay/quay-operator-bundle v3.4.0-89, quay/quay-operator-rhel8 v3.4.0-132, quay/quay-bridge-operator-bundle v3.4.0-3, +5 more
    fixed: vendor fix RHSA-2021:0420
  • Red Hat Enterprise Linux 5 python-imaging Red Hat Enterprise Linux 6 python-imaging, python-imaging-tk, python-imaging-sane Red Hat Enterprise Linux 7 python-pillow, python-pillow-qt, python-pillow-tk, python-pillow-sane Red Hat Enterprise Linux 8 python-pillow, python3-pillow, python3-pillow-tk
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.98% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
GitHub 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P
OSV 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
pypi pillow
<6.2.2
6.2.2
bitnami pillow
<6.2.2
6.2.2

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.