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Fencer Vulns
high 7.5

CVE-2017-14502 json

read_header in archive_read_support_format_rar.c in libarchive 3.3.2 suffers from an off-by-one error for UTF-16 names in RAR archives, lea…

published 2017-09-17 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-6004

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.4%
EPSS 3.4% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

read_header in archive_read_support_format_rar.c in libarchive 3.3.2 suffers from an off-by-one error for UTF-16 names in RAR archives, leading to an out-of-bounds read in archive_read_format_rar_read_header.

Patch / fix

  • libarchive Debian 14, Debian 13, Debian 12 3.2.2-4.1

debian advisories DEBIAN-CVE-2017-14502

  • libarchive Ubuntu 14.04 LTS 3.1.2-7ubuntu2.7
  • libarchive Ubuntu 16.04 LTS 3.1.2-11ubuntu0.16.04.5
  • libarchive Ubuntu 18.04 LTS 3.2.2-3.1ubuntu0.2

ubuntu advisories UBUNTU-CVE-2017-14502

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

  • libarchive RHEL 8 3.3.3-1.el8
  • bsdtar RHEL 8 3.3.3-1.el8

red hat advisories RHEA-2021:1580

  • libarchive SLES for SAP 15 SP1, SLES for SAP 15, SLES 15-LTSS +10 more 3.3.3-3.14.1
  • libarchive SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +4 more 3.1.2-26.6.1
  • libarchive SLES 12 SP4, SLES 12 SP3, SLED 12 SP4 +5 more 3.1.2-26.3.1
  • libarchive SLE Module for Development Tools 15, SLE Module for Basesystem 15 3.3.2-3.3.2

suse advisories SUSE-RU-2021:2757-1SUSE-SU-2019:3092-1SUSE-SU-2018:3640-2SUSE-SU-2018:3640-1SUSE-SU-2018:3571-1

  • libarchive Alpine 3.9, Alpine 3.8, Alpine 3.7 3.3.3-r0

alpine advisories ALPINE-CVE-2017-14502

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-2017-14502 updated cvss 7.5

libarchive: Off-by-one error in the read_header function

  • Red Hat Enterprise Linux 6 libarchive
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 bsdtar, bsdcpio, libarchive
    affected: no fix planned “Will not fix”
  • Red Hat CodeReady Linux Builder (v. 8) bsdcat-debuginfo 3.3.3-1.el8, bsdtar-debuginfo 3.3.3-1.el8, libarchive-devel 3.3.3-1.el8, bsdcpio-debuginfo 3.3.3-1.el8, libarchive-debuginfo 3.3.3-1.el8, libarchive-debugsource 3.3.3-1.el8 Red Hat Enterprise Linux BaseOS (v. 8) bsdtar 3.3.3-1.el8, libarchive 3.3.3-1.el8
    fixed: vendor fix RHEA-2021:1580

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

3.37% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

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.