CVE-2017-9079: debian debian_linux
Vulnerability summary
CVE-2017-9079 is a medium (CVSS 4.7) vulnerability in debian debian_linux. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 24% of scored vulnerabilities.
Not severe (CVSS 4.7, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2Timeline
- 19-05-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
Dropbear before 2017.75 might allow local users to read certain files as root, if the file has the authorized_keys file format with a command= option. This occurs because ~/.ssh/authorized_keys is read with root privileges and symlinks are followed.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · AlpineEcosystem advisory · calculated4.7MediumCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
- OSV · UbuntuEcosystem advisory · calculated4.7MediumCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated4.7MediumCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.31%
Chance of exploitation in the next 30 days
Percentile
24%
Versus all other CVEs
30-day change
Decrease -0.01 pp
From 0.32% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian2 products
- dropbear< 2016.74-5 | < 2012.55-1.3+deb7u2
- debian_linuxEOL8.0
Alpine1 product
- dropbear< 2017.75-r0
Dropbear_ssh_project1 product
- dropbear_ssh< 2017.75
Ubuntu1 product
- dropbearAll versions (No fix recorded)
4 vendors · 5 products
References
8 links- lists.ucc.gu.uwa.edu.au/pipermail/dropbear/2017q2/001985.htmlX Refsource CONFIRMMailing ListPatchThird Party AdvisoryREPORT
- security.netapp.com/advisory/ntap-20191004-0006/X Refsource CONFIRM