CVE-2017-5188: opensuse open_build_service Link Following
CVSS: 7.5v3.0HighModified
AliasesUBUNTU-CVE-2017-5188DEBIAN-CVE-2017-5188
Published 01-03-2018Last modified 16-09-2024
Vulnerability summary
CVE-2017-5188 is a high (CVSS 7.5) Link Following vulnerability in opensuse open_build_service. EPSS estimates a 1.15% chance of exploitation in the next 30 days, higher than 66.4% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.0 (NVD)EPSS score
1.15%
0%100%
Low · +0.02 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 01-03-2018PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
5 scores · 4 sources · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NSources4 sources · 5.0–7.5
- CVE.orgCNA5.0MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:NDiffers
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
1.15%
Chance of exploitation in the next 30 days
Percentile
66%
Versus all other CVEs
30-day change
+0.02 pp
From 1.13% on 21-09-2026
21-09-202621-10-2026
EPSS score1.15%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-59Improper Link Resolution Before File Access ('Link Following')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.
- CWE-200Exposure of Sensitive Information to an Unauthorized ActorThe product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
Affected systems
Debian1 product
- open-build-service< 2.7.4-3
Opensuse1 product
- open_build_service≥ unspecified, < 20170320 | ≤ 2.7.3
Ubuntu1 product
- open-build-serviceAll versions (No fix recorded)
3 vendors · 3 products
References
7 links- github.com/openSUSE/open-build-service/commit/ba27c91351878bc297ec4baba0bd488a2f3b568dX Refsource CONFIRMREPORT
- bugzilla.suse.com/show_bug.cgi?id=1029824X Refsource CONFIRM
- www.suse.com/de-de/security/cve/CVE-2017-5188/X Refsource CONFIRM
