CVE-2017-7436 — libzypp accepts unsigned packages even when configured to check signatures

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HIGH

libzypp accepts unsigned packages even when configured to check signatures

Published Mar 1, 2018

8.1

HIGH

CVSS 3.0

EPSS 1.81%

Description

In libzypp before 20170803 it was possible to retrieve unsigned packages without a warning to the user which could lead to man in the middle or malicious servers to inject malicious RPM packages into a users system.

Affected products

Vendor SUSE Product Libzypp Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <20170803

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

SUSE

Libzypp

n/a

Version	Status	Constraints
unspecified	affected	<20170803

Remediation

No remediation recorded yet.

Metrics

1.81% 0.01809

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.01809

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Table of values (9 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	1.81% (0.01809)	77.80th	v5 (v2026.06.15)
Jun 15, 2026	1.84% (0.01843)	76.18th	v5 (v2026.06.15)
Jul 20, 2024	0.16% (0.00159)	52.78th	v3 (v2023.03.01)
Nov 8, 2023	0.16% (0.00159)	52.27th	v3 (v2023.03.01)
Mar 7, 2023	0.15% (0.00148)	48.97th	v3 (v2023.03.01)
Mar 6, 2023	0.95% (0.00954)	36.37th	v2 (v2022.01.01)
Feb 4, 2022	0.95% (0.00954)	16.28th	v2 (v2022.01.01)
Feb 3, 2022	0.83% (0.00833)	24.58th	v5 (v2026.06.15)
Apr 14, 2021	0.83% (0.00833)	0.00th	v1

Weaknesses (1)

CWE-20

Improper Input Validation

References (3)

https://bugzilla.suse.com/show_bug.cgi?id=1038984
x_refsource_CONFIRM
https://lists.opensuse.org/opensuse-security-announce/2017-08/msg00002.html
vendor-advisoryx_refsource_SUSE
https://www.suse.com/de-de/security/cve/CVE-2017-7436/
x_refsource_CONFIRM

Link	Providers	Tags
https://bugzilla.suse.com/show_bug.cgi?id=1038984		x_refsource_CONFIRM
https://lists.opensuse.org/opensuse-security-announce/2017-08/msg00002.html		vendor-advisoryx_refsource_SUSE
https://www.suse.com/de-de/security/cve/CVE-2017-7436/		x_refsource_CONFIRM

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner microfocus

Published Mar 1, 2018

Updated Sep 16, 2024

Reserved Apr 5, 2017

Link CVE-2017-7436

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2017-7436

Red Hat

Severity n/a

Public date n/a

Links CVE-2017-7436