CVE-2017-7479: openvpn technologies, inc openvpn Reachable Assertion
CVSS: 6.5v3.0MediumModified
AliasesALPINE-CVE-2017-7479UBUNTU-CVE-2017-7479DEBIAN-CVE-2017-7479DLA-944-1
Published 15-05-2017Last modified 05-08-2024
Vulnerability summary
CVE-2017-7479 is a medium (CVSS 6.5) Reachable Assertion vulnerability in openvpn technologies, inc openvpn. EPSS estimates a 1.85% chance of exploitation in the next 30 days, higher than 78.8% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.0 (NVD)EPSS score
1.85%
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 5 · Related 4Timeline
- 15-05-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
OpenVPN versions before 2.3.15 and before 2.4.2 are vulnerable to reachable assertion when packet-ID counter rolls over resulting into Denial of Service of server by authenticated attacker.
CVSS metrics
5 scores · 4 sources · 2 versionsMedium 6.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HSourcesAll 4 agree
- OSV · AlpineEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Medium 4.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.85%
Chance of exploitation in the next 30 days
Percentile
79%
Versus all other CVEs
30-day change
0.00 pp
From 1.85% on 20-09-2026
20-09-202620-10-2026
EPSS score1.85%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Alpine1 product
- openvpn< 2.3.15-r0 | < 2.4.2-r0
Debian1 product
- openvpn< 2.4.0-5 | < 2.2.1-8+deb7u4
Openvpn1 product
- openvpnEOL≤ 2.3.14 | 2.4.0 | 2.4.0:alpha2 | 2.4.0:beta1 | 2.4.0:beta2 | 2.4.0:rc1 | 2.4.0:rc2 | 2.4.1
Openvpn technologies, inc1 product
- openvpn< 2.3.15 | < 2.4.2
Ubuntu1 product
- openvpn< 2.3.2-7ubuntu3.2 | < 2.3.10-1ubuntu2.1
5 vendors · 5 products
References
10 links- community.openvpn.net/openvpn/wiki/QuarkslabAndCryptographyEngineerAuditsX Refsource CONFIRMVendor AdvisoryREPORT
