Vulnerability Details : CVE-2014-1638
(1) debian/postrm and (2) debian/localepurge.config in localepurge before 0.7.3.2 use tempfile to create a safe temporary file but appends a suffix to the original filename and writes to this new filename, which allows local users to overwrite arbitrary files via a symlink attack on the new filename.
Exploit prediction scoring system (EPSS) score for CVE-2014-1638
Probability of exploitation activity in the next 30 days: 0.04%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 6 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2014-1638
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
3.3
|
LOW | AV:L/AC:M/Au:N/C:N/I:P/A:P |
3.4
|
4.9
|
NIST |
CWE ids for CVE-2014-1638
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The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.Assigned by: nvd@nist.gov (Primary)
References for CVE-2014-1638
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http://www.openwall.com/lists/oss-security/2014/01/22/3
oss-security - Getting tempfile/mktemp wrong
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https://exchange.xforce.ibmcloud.com/vulnerabilities/90669
localepurge maintainer scripts symlink CVE-2014-1638 Vulnerability Report
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http://www.securityfocus.com/bid/65098
syncevolution '/src/syncevo/installcheck-local.sh' Insecure Temporary File Creation Vulnerability
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http://www.openwall.com/lists/oss-security/2014/01/22/4
oss-security - Re: Getting tempfile/mktemp wrong
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http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=736359
#736359 - localepurge: CVE-2014-1638: tmp file vulnerability - Debian Bug report logsVendor Advisory
Products affected by CVE-2014-1638
- cpe:2.3:a:debian:localepurge:*:*:*:*:*:*:*:*