8.1high

CVE-2017-7436

libzypp accepts unsigned packages even when configured to check signatures

Published 8 y ago · modified 4 mo ago · JSON

CVSS
8.1
v3.0 · CNA
CISA KEV
No
not known exploited
EPSS
1.8%
percentile 79%
Public exploits
0
none known

Summary

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.

Exploit prediction (EPSS)

1.82% probability of exploitation in the next 30 days, higher than 79% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
CNA3.08.1CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA3.08.1CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD3.08.1CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD2.09.3AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

  • SUSE libzypp

Classification

Weakness
  • CWE-20 Improper Input Validation

References

  • lists.opensuse.org /opensuse-security-announce/2017-08/msg00002.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • bugzilla.suse.com /show_bug.cgi?id=1038984 · x_refsource_CONFIRM, x_transferred
  • suse.com /de-de/security/cve/CVE-2017-7436/ · x_refsource_CONFIRM, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.