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CVE-2018-6198

Date: January 24, 2018

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.

Language: C

Severity Score

Related Resources (12)

https://usn.ubuntu.com/3555-2/
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00028.html
https://usn.ubuntu.com/3555-1/
https://salsa.debian.org/debian/w3m/commit/18dcbadf2771cdb0c18509b14e4e73505b242753
https://github.com/tats/w3m/commit/18dcbadf2771cdb0c18509b14e4e73505b242753
https://access.redhat.com/security/cve/CVE-2018-6198
https://bugs.debian.org/888097
http://www.securityfocus.com/bid/102855
https://nvd.nist.gov/vuln/detail/CVE-2018-6198
https://security-tracker.debian.org/tracker/CVE-2018-6198
https://people.canonical.com/~ubuntu-security/cve/CVE-2018-6198
https://www.mend.io/vulnerability-database/CVE-2018-6198

Severity Score

Weakness Type (CWE)

Data Handling

CWE-19

Improper Link Resolution Before File Access ('Link Following')

CWE-59

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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