CVE-2018-6196: canonical ubuntu_linux Infinite Loop
CVSS: 7.5v3.0HighModified
AliasesALPINE-CVE-2018-6196UBUNTU-CVE-2018-6196DEBIAN-CVE-2018-6196
Published 25-01-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-6196 is a high (CVSS 7.5) Infinite Loop vulnerability in canonical ubuntu_linux. EPSS estimates a 2.94% chance of exploitation in the next 30 days, higher than 86.9% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v3.0 (NVD)EPSS score
2.94%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 5 · Related 3Timeline
- 25-01-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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 metrics
5 scores · 4 sources · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 4 agree
- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
2.94%
Chance of exploitation in the next 30 days
Percentile
87%
Versus all other CVEs
30-day change
0.00 pp
From 2.94% on 19-09-2026
19-09-202619-10-2026
EPSS score2.94%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundW3M
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Alpine1 product
- w3m< 0.5.3_git20241203-r0
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 16.04 | 17.10
Debian1 product
- w3m< 0.5.3-36
Tats1 product
- w3m≤ 0.5.3
Ubuntu1 product
- w3m< 0.5.3-15ubuntu0.2 | < 0.5.3-26ubuntu0.2
5 vendors · 5 products
References
12 links- github.com/tats/w3m/commit/8354763b90490d4105695df52674d0fcef823e92X Refsource CONFIRMPatchThird Party Advisory
