CVE-2018-6197: w3m through 0.5.3 is prone to a NULL pointer dereference flaw in formUpdateBuffer in form.c

High severity · published Jan 25, 2018

CVE-2018-6197

w3m through 0.5.3 is prone to a NULL pointer dereference flaw in formUpdateBuffer in form.c

7.5

CVSS

4.4%

EPSS

On KEV

Description

w3m through 0.5.3 is prone to a NULL pointer dereference flaw in formUpdateBuffer in form.c.

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)4.4% · higher than 91% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Ubuntu Linux · Canonical

12.04; 14.04; 16.04; 17.10 · source: NVD

W3m · Tats

through 0.5.3 · source: NVD

Affected product

Ubuntu Linux

Canonical

All Ubuntu Linux CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2018-6197

CVE.org

https://www.cve.org/CVERecord?id=CVE-2018-6197

lists.opensuse.org

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00028.html

Third Party Advisory

http://www.securityfocus.com/bid/102846

Patch

https://github.com/tats/w3m/commit/7fdc83b0364005a0b5ed869230dd81752ba022e8

Exploit

https://github.com/tats/w3m/issues/89

lists.debian.org

https://lists.debian.org/debian-lts-announce/2020/04/msg00025.html

Third Party Advisory

https://usn.ubuntu.com/3555-1/