CVE catalog

CVE-2018-18398

thunar: CVE-2018-18398

Severity: Low
Published: Oct 19, 2018, 10:29:01 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.32% · Oct 25, 2026

Xfce Thunar 1.6.15, when Xfce 4.12 is used, mishandles the IBus-Unikey input method for file searches within File Manager, leading to an out-of-bounds read and SEGV. This could potentially be exploited by an arbitrary local user who creates files in /tmp before the victim uses this input method.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	thunar	sid	`4.20.10-1`	vulnerable
Debian	thunar	forky	`4.20.10-1`	vulnerable
Debian	thunar	trixie	`4.20.2-1+deb13u1`	vulnerable
Debian	thunar	bookworm	`4.18.4-1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	thunar	source	sid	`(unfixed)`	unimportant	Not reported	Not reported
Debian	thunar	source	forky	`(unfixed)`	unimportant	Not reported	Not reported
Debian	thunar	source	trixie	`(unfixed)`	unimportant	Not reported	Not reported
Debian	thunar	source	bookworm	`(unfixed)`	unimportant	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[gir1.2-thunarx-3.0]Affected
Source package: [thunar]
Details (2)
- 4.18.4-1 · amd64 · bookworm
  Affected
  dsa · thunar · debian · bookworm; dsa · thunar · debian · 12
- 4.18.4-1 · arm64 · bookworm
  Affected
  dsa · thunar · debian · bookworm; dsa · thunar · debian · 12
[libthunarx-3-0]Affected
Source package: [thunar]
Details (2)
- 4.18.4-1 · amd64 · bookworm
  Affected
  dsa · thunar · debian · bookworm; dsa · thunar · debian · 12
- 4.18.4-1 · arm64 · bookworm
  Affected
  dsa · thunar · debian · bookworm; dsa · thunar · debian · 12
[libthunarx-3-dev]Affected
Source package: [thunar]
Details (2)
- 4.18.4-1 · amd64 · bookworm
  Affected
  dsa · thunar · debian · bookworm; dsa · thunar · debian · 12
- 4.18.4-1 · arm64 · bookworm
  Affected
  dsa · thunar · debian · bookworm; dsa · thunar · debian · 12
[thunar]Affected
Details (2)
- 4.18.4-1 · amd64 · bookworm
  Affected
  dsa · thunar · debian · bookworm; dsa · thunar · debian · 12
- 4.18.4-1 · arm64 · bookworm
  Affected
  dsa · thunar · debian · bookworm; dsa · thunar · debian · 12
[thunar-data]Affected
Source package: [thunar]
Details (2)
- 4.18.4-1 · all · bookworm
  Affected
  dsa · thunar · debian · bookworm; dsa · thunar · debian · 12
- 4.18.4-1 · all · bookworm
  Affected
  dsa · thunar · debian · bookworm; dsa · thunar · debian · 12

[Debian 13 (Trixie)]

[gir1.2-thunarx-3.0]Affected
Source package: [thunar]
Details (2)
- 4.20.2-1+deb13u1 · amd64 · trixie
  Affected
  dsa · thunar · debian · 13
- 4.20.2-1+deb13u1 · arm64 · trixie
  Affected
  dsa · thunar · debian · 13
[libthunarx-3-0]Affected
Source package: [thunar]
Details (2)
- 4.20.2-1+deb13u1 · amd64 · trixie
  Affected
  dsa · thunar · debian · 13
- 4.20.2-1+deb13u1 · arm64 · trixie
  Affected
  dsa · thunar · debian · 13
[libthunarx-3-dev]Affected
Source package: [thunar]
Details (2)
- 4.20.2-1+deb13u1 · amd64 · trixie
  Affected
  dsa · thunar · debian · 13
- 4.20.2-1+deb13u1 · arm64 · trixie
  Affected
  dsa · thunar · debian · 13
[thunar]Affected
Details (2)
- 4.20.2-1+deb13u1 · amd64 · trixie
  Affected
  dsa · thunar · debian · 13
- 4.20.2-1+deb13u1 · arm64 · trixie
  Affected
  dsa · thunar · debian · 13
[thunar-data]Affected
Source package: [thunar]
Details (2)
- 4.20.2-1+deb13u1 · all · trixie
  Affected
  dsa · thunar · debian · 13
- 4.20.2-1+deb13u1 · all · trixie
  Affected
  dsa · thunar · debian · 13

Observed: Oct 23, 2026, 5:35:31 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]