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Fencer Intel
high 7.5

CVE-2015-8918 json

The archive_string_append function in archive_string.c in libarchive before 3.2.0 allows remote attackers to cause a denial of service (cra…

published 2016-09-20 10 y ago modified 2026-06-17 4 mo ago also EUVD-2015-8774

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.8%
EPSS 3.8% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

The archive_string_append function in archive_string.c in libarchive before 3.2.0 allows remote attackers to cause a denial of service (crash) via a crafted cab files, related to "overlapping memcpy."

Patch / fix

  • bsdtar Studio Onsite 1.3, SLES for SAP 11 SP4, SLES 11 SP4 +8 more 2.5.5-9.1
  • libarchive SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 +1 more 3.1.2-22.1

suse advisories SUSE-SU-2016:1939-1SUSE-SU-2016:1909-1

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-2015-8918 updated cvss 3.7

libarchive: Overlapping memcpy in CAB parser

  • Red Hat Enterprise Linux 6 libarchive Red Hat Enterprise Linux 7 bsdtar, bsdcpio, libarchive
    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

3.84% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

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
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.