CVE-2019-16165: gnu cflow Use After Free
CVSS: 6.5v3.1MediumModified
AliasesUBUNTU-CVE-2019-16165USN-5375-1DEBIAN-CVE-2019-16165
Published 09-09-2019Last modified 05-08-2024
Vulnerability summary
CVE-2019-16165 is a medium (CVSS 6.5) Use After Free vulnerability in gnu cflow. EPSS estimates a 1.15% chance of exploitation in the next 30 days, higher than 66.3% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (NVD)EPSS score
1.15%
0%100%
Low · +0.03 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 09-09-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
GNU cflow through 1.6 has a use-after-free in the reference function in parser.c.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.15%
Chance of exploitation in the next 30 days
Percentile
66%
Versus all other CVEs
30-day change
+0.03 pp
From 1.11% on 20-09-2026
20-09-202620-10-2026
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 causeAffected systems
Debian1 product
- cflow< 1:1.6-6
Gnu1 product
- cflow≤ 1.6
Ubuntu1 product
- cflowAll versions (No fix recorded) | < 1:1.4+dfsg1-3ubuntu1.16.04.1~esm1 | < 1:1.4+dfsg1-3ubuntu1.18.04.1~esm1
3 vendors · 3 products
References
5 links- lists.gnu.org/archive/html/bug-cflow/2019-04/msg00001.htmlX Refsource MISCMailing ListVendor AdvisoryREPORT
