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Fencer Intel
high 7.8

CVE-2017-8364 json

The read_buf function in stream.c in rzip 2.1 allows remote attackers to cause a denial of service (heap-based buffer overflow and applicat…

published 2017-04-30 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-17323

cvss
7.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits
0
none known

Summary

The read_buf function in stream.c in rzip 2.1 allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted archive.

Patch / fix

  • rzip Debian 14, Debian 13, Debian 12 2.1-4.1

debian advisories DEBIAN-CVE-2017-8364

  • rzip Ubuntu 14.04 LTS 2.1-2ubuntu0.14.04.1

ubuntu advisories UBUNTU-CVE-2017-8364

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

  • rzip openSUSE Tumbleweed 2.1-149.11

opensuse advisories openSUSE-SU-2024:11362-1

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-2017-8364 updated cvss 3.3

rzip: Heap-buffer overflow in the read_buf function

  • Red Hat All currently supported Red Hat products
    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

1.71% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • blogs.gentoo.org https://blogs.gentoo.org/ago/2017/04/29/rzip-heap-based-buffer-overflow-in-read_buf-stream-c/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.8 CVSS:3.0/AV:L/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

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.