CVE-2018-18557: canonical ubuntu_linux Out-of-bounds Write
Vulnerability summary
CVE-2018-18557 is a high (CVSS 8.8) Out-of-bounds Write vulnerability in canonical ubuntu_linux. EPSS estimates a 14.96% chance of exploitation in the next 30 days, higher than 96.6% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 9 · Related 5Timeline
- 22-10-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
LibTIFF 3.9.3, 3.9.4, 3.9.5, 3.9.6, 3.9.7, 4.0.0alpha4, 4.0.0alpha5, 4.0.0alpha6, 4.0.0beta7, 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.4beta, 4.0.5, 4.0.6, 4.0.7, 4.0.8 and 4.0.9 (with JBIG enabled) decodes arbitrarily-sized JBIG into a buffer, ignoring the buffer size, which leads to a tif_jbig.c JBIGDecode out-of-bounds write.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · AlpineEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
14.96%
Chance of exploitation in the next 30 days
Percentile
97%
Versus all other CVEs
30-day change
0.00 pp
From 14.96% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundlibtiff 4.0.9 - Decodes Arbitrarily Sized JBIG into a Target Buffer
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian2 products
- tiff< 4.0.9+git181026-1
- debian_linuxEOL8.0 | 9.0
Alpine1 product
- tiff< 4.0.10-r0
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 18.04 | 18.10
Libtiff1 product
- libtiff4.0.9
Ubuntu1 product
- tiff< 4.0.3-7ubuntu0.10 | < 4.0.6-1ubuntu0.5 | < 4.0.9-5ubuntu0.1
5 vendors · 6 products
References
16 links
- lists.debian.org/debian-lts-announce/2018/10/msg00019.htmlMailing ListX Refsource MLISTThird Party Advisory