Public exploit available
Public proof-of-concept or exploit code exists (ExploitDB / Metasploit / Nuclei).

CVE-2014-7187

CWE-119 — Buffer OverflowCWE-19316 documents12 sources
Severity
10.0CRITICAL
EPSS
89.9%
top 0.43%
CISA KEV
Not in KEV
Exploit
PoC available
Public exploit / PoC exists
Affected products
1
GNU Bash
Timeline
PublishedSep 28
Latest updateMay 14

Description

Off-by-one error in the read_token_word function in parse.y in GNU Bash through 4.3 bash43-026 allows remote attackers to cause a denial of service (out-of-bounds array access and application crash) or possibly have unspecified other impact via deeply nested for loops, aka the "word_lineno" issue.

CVSS vector

AV:N/AC:L/C:C/I:C/A:CExploitability: 10.0 | Impact: 10.0

Affected Packages3 packages

▶Debianbash< 4.3-9.2+3
▶Ubuntubash< 4.3-7ubuntu1.4
▶NVDgnu/bash25 versions+24

🔴Vulnerability Details

5
GHSA
GHSA-8m22-gm6f-5487: Off-by-one error in the read_token_word function in parse↗2022-05-14
▶
CVEList
CVE-2014-7187: Off-by-one error in the read_token_word function in parse↗2014-09-28
▶
OSV
CVE-2014-7187: Off-by-one error in the read_token_word function in parse↗2014-09-28
▶
OSV
bash vulnerabilities↗2014-09-27
▶
VulnCheck
GNU Bourne-Again Shell (Bash) Improper Restriction of Operations within the Bounds of a Memory Buffer↗2014
▶

💥Exploits & PoCs

2
Exploit-DB
GNU bash 4.3.11 - Environment Variable dhclient↗2014-10-02
▶
Exploit-DB
dhclient 4.1 - Bash Environment Variable Command Injection (Shellshock)↗2014-09-29
▶

📋Vendor Advisories

6
Ubuntu
Bash vulnerabilities↗2014-09-27
▶
Red Hat
bash: off-by-one error in deeply nested flow control constructs↗2014-09-26
▶
Cisco
GNU Bash Environment Variable Command Injection Vulnerability↗2014-09-26
▶
Debian
CVE-2014-7187: bash - Off-by-one error in the read_token_word function in parse.y in GNU Bash through ...↗2014
▶
Apple
CVE-2014-7187: OS X Yosemite v10.10.2 and Security Update 2015-001↗
▶

💬Community

2
Bugzilla
CVE-2014-7187 bash: off-by-one error in deeply nested flow control constructs↗2014-09-26
▶
Bugzilla
CVE-2014-7186 bash: parser can allow out-of-bounds memory access while handling redir_stack↗2014-09-26
▶