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Fencer Intel
critical 9.1

CVE-2017-7544 json

libexif through 0.6.21 is vulnerable to out-of-bounds heap read vulnerability in exif_data_save_data_entry function in libexif/exif-data.c…

published 2017-09-21 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-16555

cvss
9.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.3%
EPSS 3.3% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

libexif through 0.6.21 is vulnerable to out-of-bounds heap read vulnerability in exif_data_save_data_entry function in libexif/exif-data.c caused by improper length computation of the allocated data of an ExifMnote entry which can cause denial-of-service or possibly information disclosure.

Patch / fix

  • libexif Debian 14, Debian 13, Debian 12 0.6.21-2.1

debian advisories DEBIAN-CVE-2017-7544

  • libexif Ubuntu 16.04 LTS 0.6.21-2ubuntu0.1
  • libexif Ubuntu Pro 14.04 LTS 0.6.21-1ubuntu1+esm1

ubuntu advisories UBUNTU-CVE-2017-7544

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 SLE Module for Package Hub 15 SP2, SLE Module for Package Hub 15 SP1, SLE Module for Desktop Applications 15 SP2 +1 more 0.6.22-5.6.1
  • libexif SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES for SAP 12 SP3 +16 more 0.6.22-8.9.1
  • libexif SLES for SAP 12 SP3, SLES for SAP 12 SP2, SLES for Raspberry Pi 12 SP2 +6 more 0.6.21-8.3.1
  • libexif SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 0.6.17-2.14.3.1

suse advisories SUSE-SU-2020:1553-2SUSE-SU-2020:1553-1SUSE-SU-2020:1534-1SUSE-SU-2018:0193-1SUSE-SU-2018:0195-1

  • libexif openSUSE Tumbleweed 0.6.23-1.2
  • libexif openSUSE Leap 15.1 0.6.22-lp151.4.6.1

opensuse advisories openSUSE-SU-2024:10939-1openSUSE-SU-2020:0793-1

  • libexif Alpine 3.24, Alpine 3.23, Alpine 3.22 +14 more 0.6.21-r3
  • libexif Alpine 3.7, Alpine 3.6, Alpine 3.5 0.6.21-r2

alpine advisories ALPINE-CVE-2017-7544

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 0.6.22-1

arch linux advisories AVG-1166

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-2017-7544 updated cvss 3.3

libexif: Out-of-bounds heap read in exif_data_save_data_entry function

  • Red Hat Enterprise Linux 5 libexif Red Hat Enterprise Linux 6 libexif Red Hat Enterprise Linux 7 libexif
    affected: no fix planned “Will not fix”

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

3.27% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • sourceforge.net https://sourceforge.net/p/libexif/bugs/130/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 9.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:P/I:N/A:P

Affected products

  • Red Hat, Inc. libexif

Classification

Weakness

References

Sources

Fencer Intel 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.