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Fencer Intel
high 7.8

CVE-2018-7685 json

libzypp does not reevaluate malicious rpms once downloaded

published 2018-08-31 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-19401

cvss
7.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 22%
public exploits
0
none known

Summary

The decoupled download and installation steps in libzypp before 17.5.0 could lead to a corrupted RPM being left in the cache, where a later call would not display the corrupted RPM warning and allow installation, a problem caused by malicious warnings only displayed during download.

Patch / fix

  • SUSE libzypp 17.5.0
  • libzypp Debian 14, Debian 13, Debian 12 17.6.1-1

debian advisories DEBIAN-CVE-2018-7685

  • zypper SLES 12 SP2-BCL, OpenStack Cloud 7, Enterprise Storage 4 +2 more 1.13.45-18.33.1
  • libzypp SLES 12 SP2-BCL, OpenStack Cloud 7, Enterprise Storage 4 +2 more 16.17.20-27.52.1
  • zypper SLES for SAP 12 SP3, SLES 12 SP3, SLED 12 SP3 1.13.45-21.21.2
  • libzypp SLES for SAP 12 SP3, SLES 12 SP3, SLED 12 SP3 +1 more 16.17.20-2.33.2
  • zypper SLE Module for Basesystem 15 1.14.10-3.7.1
  • libsolv SLE Module for Development Tools 15, SLE Module for Basesystem 15 0.6.35-3.5.2
  • libzypp SLE Module for Basesystem 15 17.6.4-3.10.1
  • zypper SLES 12-LTSS 1.11.70-2.69.2

suse advisories SUSE-SU-2018:2716-2SUSE-SU-2018:2814-1SUSE-SU-2018:2716-1SUSE-SU-2018:2690-1SUSE-SU-2018:2688-1SUSE-SU-2018:2555-1

  • libzypp openSUSE Tumbleweed 17.28.4-1.2

opensuse advisories openSUSE-SU-2024:11019-1

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-2018-7685 updated cvss 6.3

libzypp: decoupled download and installation allows corrupted RPM install

  • 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

0.30% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • SUSE libzypp

Classification

Weakness
  • CWE-358 Improperly Implemented Security Check for Standard
  • CWE-347 Improper Verification of Cryptographic Signature

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.