Vulnerability Details : CVE-2017-5188
The bs_worker code in open build service before 20170320 followed relative symlinks, allowing reading of files outside of the package source directory during build, allowing leakage of private information.
Vulnerability category: Information leak
Products affected by CVE-2017-5188
- cpe:2.3:a:opensuse:open_build_service:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-5188
0.15%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 33 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-5188
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:N |
10.0
|
2.9
|
NIST | |
|
5.0
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N |
1.3
|
3.6
|
SUSE | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2017-5188
-
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.Assigned by: nvd@nist.gov (Primary)
-
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-5188
-
https://bugzilla.suse.com/show_bug.cgi?id=1029824
Bug 1029824 – VUL-0: CVE-2017-5188: open-build-service: worker VM escape via relative symbolic linksIssue Tracking
-
https://github.com/openSUSE/open-build-service/commit/ba27c91351878bc297ec4baba0bd488a2f3b568d
[backend] only allow plain files in cpio_sender · openSUSE/open-build-service@ba27c91 · GitHubPatch
-
https://www.suse.com/de-de/security/cve/CVE-2017-5188/
CVE-2017-5188 | SUSEVendor Advisory
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