Medium severity · published Jan 25, 2018
CVE-2018-6198
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…
4.7
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UL
Ubuntu Linux · Canonical
12.04; 14.04; 16.04; 17.10 · source: NVD
W3
W3m · Tats
through 0.5.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-6198
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-6198
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00028.html
Third Party Advisory
http://www.securityfocus.com/bid/102855
Issue Tracking
https://bugs.debian.org/888097
Patch
https://github.com/tats/w3m/commit/18dcbadf2771cdb0c18509b14e4e73505b242753
Patch
https://salsa.debian.org/debian/w3m/commit/18dcbadf2771cdb0c18509b14e4e73505b242753
Third Party Advisory
https://usn.ubuntu.com/3555-1/
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