High severity · published Jan 25, 2018
CVE-2018-6196
w3m through 0.5.3 is prone to an infinite recursion flaw in HTMLlineproc0 because the feed_table_block_tag function in table.c does not prevent a negative indent value
7.5
CVSS
2.9%
EPSS
No
On KEV
Description
w3m through 0.5.3 is prone to an infinite recursion flaw in HTMLlineproc0 because the feed_table_block_tag function in table.c does not prevent a negative indent value.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.9% · higher than 87% 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-2018-6196
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-6196
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00028.html
Patch
https://github.com/tats/w3m/commit/8354763b90490d4105695df52674d0fcef823e92
Exploit
https://github.com/tats/w3m/issues/88
lists.debian.org
https://lists.debian.org/debian-lts-announce/2020/04/msg00025.html
Third Party Advisory
https://usn.ubuntu.com/3555-1/
Third Party Advisory
https://usn.ubuntu.com/3555-2/
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