CVE-2017-7436 — In libzypp before 20170803 it was possible to retrieve unsigned packages without

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.

01What is this vulnerability?

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.

02Affected products

Vendor	Product	Versions
SUSE	libzypp	unspecified

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2018-03-01T19:00:00.000Z
• Last modified: 2024-09-16T19:09:24.691Z

09References

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