CVE-2016-0634: gnu bash OS Command Injection
CVSS: 7.5v3.0HighModified
AliasesALPINE-CVE-2016-0634UBUNTU-CVE-2016-0634DEBIAN-CVE-2016-0634
Published 28-08-2017Last modified 04-10-2024
Vulnerability summary
CVE-2016-0634 is a high (CVSS 7.5) OS Command Injection vulnerability in gnu bash. EPSS estimates a 6.02% chance of exploitation in the next 30 days, higher than 93.2% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.0 (NVD)EPSS score
6.02%
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 8 · Related 5Timeline
- 28-08-2017PublishedVulnerability first disclosed.
- 04-10-2024Last modifiedVulnerability information updated.
Description
The expansion of '\h' in the prompt string in bash 4.3 allows remote authenticated users to execute arbitrary code via shell metacharacters placed in 'hostname' of a machine.
CVSS metrics
5 scores · 4 sources · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesAll 4 agree
- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Medium 6.0Preferred score · NVD (NIST)
AV:N/AC:M/Au:S/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
6.02%
Chance of exploitation in the next 30 days
Percentile
93%
Versus all other CVEs
30-day change
0.00 pp
From 6.02% on 18-09-2026
18-09-202618-10-2026
EPSS score6.02%
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
- bash< 4.4.12-r1
Debian1 product
- bash< 4.4-1
Gnu1 product
- bash4.3
Ubuntu1 product
- bash< 4.3-7ubuntu1.7 | < 4.3-14ubuntu1.2
4 vendors · 4 products
References
20 links- www.openwall.com/lists/oss-security/2016/09/16/8Mailing ListX Refsource MLISTPatchThird Party AdvisoryREPORT
Show all 20 references
- bugzilla.redhat.com/show_bug.cgi?id=1377613X Refsource CONFIRMIssue TrackingPatchThird Party AdvisoryVDB Entry
