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Fencer Vulns
critical 9.8

CVE-2020-0452 json

In exif_entry_get_value of exif-entry.c, there is a possible out of bounds write due to an integer overflow.

published 2020-11-10 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-1953

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.1%
EPSS 3.1% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known

Summary

In exif_entry_get_value of exif-entry.c, there is a possible out of bounds write due to an integer overflow. This could lead to remote code execution if a third party app used this library to process remote image data with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-8.1 Android-9 Android-10 Android-11 Android-8.0Android ID: A-159625731

Patch / fix

  • libexif Debian 14, Debian 13, Debian 12 0.6.22-3

debian advisories DEBIAN-CVE-2020-0452

  • libexif Ubuntu 16.04 LTS 0.6.21-2ubuntu0.6
  • libexif Ubuntu 18.04 LTS 0.6.21-4ubuntu0.6
  • libexif Ubuntu 20.04 LTS 0.6.21-6ubuntu0.4
  • libexif Ubuntu Pro 14.04 LTS 0.6.21-1ubuntu1+esm6

ubuntu advisories UBUNTU-CVE-2020-0452

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libexif RHEL 7 0.6.22-2.el7_9
  • libexif RHEL 8 0.6.22-5.el8_3
  • libexif RHEL 8.2 EUS 0.6.21-18.el8_2
  • libexif RHEL 8.1 EUS 0.6.21-18.el8_1
  • libexif RHEL 8.0 E4S 0.6.21-18.el8_0

red hat advisories RHSA-2020:5402RHSA-2020:5393RHSA-2020:5394RHSA-2020:5395RHSA-2020:5396

  • libexif SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES for SAP 12 SP3 +11 more 0.6.22-8.13.1
  • libexif SLES for SAP 15 SP2, SLES for SAP 15 SP1, SLES for SAP 15 +21 more 0.6.22-150000.5.9.1

suse advisories SUSE-SU-2022:1168-1SUSE-SU-2022:1148-1

  • libexif openSUSE Tumbleweed 0.6.23-1.2

opensuse advisories openSUSE-SU-2024:10939-1

  • libexif AlmaLinux 8 0.6.22-5.el8_3

almalinux advisories ALSA-2020:5393

  • libexif Rocky Linux 8 0.6.22-5.el8_3

rocky linux advisories RLSA-2020:5393

  • libexif Alpine 3.24, Alpine 3.23, Alpine 3.22 +8 more 0.6.23-r0

alpine advisories ALPINE-CVE-2020-0452

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

  • libexif Arch Linux 0.6.23-1

arch linux advisories AVG-2376

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-2020-0452 updated cvss 9.8

libexif: out of bounds write due to an integer overflow in exif-entry.c

  • Red Hat Enterprise Linux 5 libexif Red Hat Enterprise Linux 6 libexif
    affected: no fix planned “Out of support scope”
  • Red Hat CodeReady Linux Builder (v. 8) libexif-devel 0.6.22-5.el8_3, libexif-debuginfo 0.6.22-5.el8_3, libexif-debugsource 0.6.22-5.el8_3
    fixed: vendor fix RHSA-2020:5393
  • Red Hat CodeReady Linux Builder EUS (v. 8.1) libexif-devel 0.6.21-18.el8_1, libexif-debuginfo 0.6.21-18.el8_1, libexif-debugsource 0.6.21-18.el8_1
    fixed: vendor fix RHSA-2020:5395
  • Red Hat CodeReady Linux Builder EUS (v. 8.2) libexif-devel 0.6.21-18.el8_2, libexif-debuginfo 0.6.21-18.el8_2, libexif-debugsource 0.6.21-18.el8_2
    fixed: vendor fix RHSA-2020:5394
  • Red Hat Enterprise Linux AppStream (v. 8) libexif 0.6.22-5.el8_3
    fixed: vendor fix RHSA-2020:5393
  • Red Hat Enterprise Linux AppStream E4S (v. 8.0) libexif 0.6.21-18.el8_0
    fixed: vendor fix RHSA-2020:5396
  • Red Hat Enterprise Linux AppStream EUS (v. 8.1) libexif 0.6.21-18.el8_1
    fixed: vendor fix RHSA-2020:5395
  • Red Hat Enterprise Linux AppStream EUS (v. 8.2) libexif 0.6.21-18.el8_2
    fixed: vendor fix RHSA-2020:5394
show 1 more
  • Red Hat Enterprise Linux Client (v. 7) libexif 0.6.22-2.el7_9 Red Hat Enterprise Linux Client Optional (v. 7) libexif-doc 0.6.22-2.el7_9, libexif-devel 0.6.22-2.el7_9, libexif-debuginfo 0.6.22-2.el7_9 Red Hat Enterprise Linux ComputeNode Optional (v. 7) libexif 0.6.22-2.el7_9 Red Hat Enterprise Linux Server (v. 7) libexif 0.6.22-2.el7_9 Red Hat Enterprise Linux Server Optional (v. 7) libexif-doc 0.6.22-2.el7_9, libexif-devel 0.6.22-2.el7_9, libexif-debuginfo 0.6.22-2.el7_9 Red Hat Enterprise Linux Workstation (v. 7) libexif 0.6.22-2.el7_9
    +1 more products
    Red Hat Enterprise Linux Workstation Optional (v. 7) libexif-doc 0.6.22-2.el7_9, libexif-devel 0.6.22-2.el7_9, libexif-debuginfo 0.6.22-2.el7_9
    fixed: vendor fix RHSA-2020:5402

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

3.07% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • n/a Android

Classification

Weakness

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.