CVE-2018-19637: opensuse supportutils Insecure Temporary File
CVSS: 5.5v3.0MediumModified
Published 05-03-2019Last modified 16-09-2024
Vulnerability summary
CVE-2018-19637 is a medium (CVSS 5.5) Insecure Temporary File vulnerability in opensuse supportutils. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 38.2% of scored vulnerabilities.
CVSS score
5.5/10
010
Medium · v3.0 (NVD)EPSS score
0.46%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 3 · Related 3Timeline
- 05-03-2019PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
Supportutils, before version 3.1-5.7.1, wrote data to static file /tmp/supp_log, allowing local attackers to overwrite files on systems without symlink protection
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 5.5Preferred score · NVD (NIST)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NSources2 sources · 2.8–5.5
- CVE.orgCNA2.8LowCVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:NDiffers
Low 3.6Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:N/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.46%
Chance of exploitation in the next 30 days
Percentile
38%
Versus all other CVEs
30-day change
0.00 pp
From 0.46% on 18-09-2026
18-09-202618-10-2026
EPSS score0.46%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-377Insecure Temporary FileCreating and using insecure temporary files can leave application and system data vulnerable to attack.
- 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.
Affected systems
Opensuse1 product
- supportutils< 3.1-5.7.1
Suse1 product
- supportutils≥ unspecified, < 3.1-5.7.1
2 vendors · 2 products
References
2 links- bugzilla.suse.com/show_bug.cgi?id=1117776X Refsource CONFIRM