Buffer overflow in GNU Bash
CVE-2014-7187
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v2 metric
CVSS v2 base score 10.0 (High). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.585 (99.1th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.585 · newest: 0.585 · change: 0.000
Affected products
- GNU Bash — versions 1.14.0, 1.14.1, 1.14.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- packetstormsecurity.com/files/128517/VMware-Security-Advisory-2014-0010.html
- www-01.ibm.com/support/docview.wss
- www-01.ibm.com/support/docview.wss
- marc.info/ (vendor-advisory)
- supportcenter.checkpoint.com/supportcenter/portal
- marc.info/ (vendor-advisory)
- marc.info/ (vendor-advisory)
- www.securityfocus.com/archive/1/533593/100/0/threaded (mailing-list)
- marc.info/ (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2014-09/msg00038.html (vendor-advisory)
Frequently asked questions
- What is CVE-2014-7187?
- CVE-2014-7187 is a vulnerability in GNU Bash, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2014-09-28.
- Is CVE-2014-7187 known to be exploited?
- 35 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.