CVE-2019-18900 | libzypp stores cookies world readable

: Incorrect Default Permissions vulnerability in libzypp of SUSE CaaS Platform 3.0, SUSE Linux Enterprise Server 12, SUSE Linux Enterprise Server 15 allowed local attackers to read a cookie store used by libzypp, exposing private cookies. This issue affects: SUSE CaaS Platform 3.0 libzypp versions prior to 16.21.2-27.68.1. SUSE Linux Enterprise Server 12 libzypp versions prior to 16.21.2-2.45.1. SUSE Linux Enterprise Server 15 17.19.0-3.34.1.

Published: 2020-01-24 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-18900 is rated Low Risk (25.7/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.10%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2019-18900

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-21 0.04% 0.10% +0.06%
2 2025-11-18 0.10% 0.04% -0.06%
3 2025-05-04 — 0.10% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-18900

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.0 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 2.5 1.4 [email protected]
3.3 3.1 LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 1.4 [email protected]
2.1 2.0 LOW
AV:L/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 3.9 2.9 [email protected]

Weakness enumeration for CVE-2019-18900

OS Trackers for CVE-2019-18900

vendor priority summary link
debian not yet assigned CVE-2019-18900 not yet assigned priority: Debian including 1 source packages (libzypp), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2019-18900
suse medium CVE-2019-18900 severity moderate: SUSE including 421 source package names (0.1.0:libsolv-tools-0.7.10-3.13.4, 0.1.0:libzypp-17.19.0-3.14.5, …), 612 product×package rows across 132 product lines (Container caasp/v4/389-ds, Container caasp/v4/busybox, … (132 product lines)): Fixed 343, Known Affected 157, Known Not Affected 112. https://www.suse.com/security/cve/CVE-2019-18900/
ubuntu low CVE-2019-18900 low priority: Ubuntu including 1 source packages (libzypp), 17 status rows across 17 suites (bionic, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): ignored 8, needs-triage 6, DNE 3. https://ubuntu.com/security/CVE-2019-18900

Affected software / configurations for CVE-2019-18900

Vendor Product Version Raw CPE
opensuse libzypp < 16.21.2-27.68.1 cpe:2.3:a:opensuse:libzypp:*:*:*:*:*:*:*:*
opensuse libzypp < 16.21.2-2.45.1 cpe:2.3:a:opensuse:libzypp:*:*:*:*:*:*:*:*
opensuse libzypp < 17.19.0-3.34.1 cpe:2.3:a:opensuse:libzypp:*:*:*:*:*:*:*:*

References for CVE-2019-18900

cvelogic Threat Intelligence