CVE-2018-6198
First published: Wed Jan 24 2018(Updated: )
w3m through 0.5.3 does not properly handle temporary files when the ~/.w3m directory is unwritable, which allows a local attacker to craft a symlink attack to overwrite arbitrary files.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| W3m Project W3m | <=0.5.3 | |
| Canonical Ubuntu Linux | =12.04 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =17.10 | |
| Tats W3m | <=0.5.3 | |
| ubuntu/w3m | <0.5.3-34ubuntu0.1 | 0.5.3-34ubuntu0.1 |
| ubuntu/w3m | <0.5.3-15ubuntu0.2 | 0.5.3-15ubuntu0.2 |
| ubuntu/w3m | <0.5.3-36 | 0.5.3-36 |
| ubuntu/w3m | <0.5.3-26ubuntu0.2 | 0.5.3-26ubuntu0.2 |
| debian/w3m | 0.5.3+git20210102-6+deb11u1 0.5.3+git20230121-2 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00028.html
- http://www.securityfocus.com/bid/102855
- https://bugs.debian.org/888097
- https://github.com/tats/w3m/commit/18dcbadf2771cdb0c18509b14e4e73505b242753
- https://salsa.debian.org/debian/w3m/commit/18dcbadf2771cdb0c18509b14e4e73505b242753
- https://usn.ubuntu.com/3555-1/
- https://usn.ubuntu.com/3555-2/
- https://launchpad.net/bugs/cve/CVE-2018-6198
- https://security-tracker.debian.org/tracker/CVE-2018-6198
- https://ubuntu.com/security/notices/USN-3555-1
- https://ubuntu.com/security/notices/USN-3555-2
- https://www.cve.org/CVERecord?id=CVE-2018-6198
- https://nvd.nist.gov/vuln/detail/CVE-2018-6198
- https://ubuntu.com/security/CVE-2018-6198
Frequently Asked Questions
What is the vulnerability CVE-2018-6198?
CVE-2018-6198 is a vulnerability in the w3m web browser that allows a local attacker to craft a symlink attack and overwrite arbitrary files when the ~/.w3m directory is unwritable.
How does CVE-2018-6198 affect w3m?
CVE-2018-6198 affects w3m versions through 0.5.3.
What is the severity of CVE-2018-6198?
The severity of CVE-2018-6198 is medium, with a CVSS score of 4.7.
How can I fix the CVE-2018-6198 vulnerability in w3m?
To fix the CVE-2018-6198 vulnerability in w3m, upgrade to version 0.5.3-37 or later.
Are there any references for CVE-2018-6198?
Yes, you can find references for CVE-2018-6198 at the following links: [Reference 1](http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00028.html), [Reference 2](http://www.securityfocus.com/bid/102855), [Reference 3](https://bugs.debian.org/888097).
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- version/canonical ubuntu linux/14.04
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- version/canonical ubuntu linux/17.10
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