CVE catalog

CVE-2020-29260

LibVNCServer vulnerabilities

Severity: Medium · CVSS 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Published: Sep 2, 2022, 11:15:08 PM UTC
Source: [NVD] · [CVE record]
EPSS: 1.11% · Oct 25, 2026

libvncclient v0.9.13 was discovered to contain a memory leak via the function rfbClientCleanup().

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	libvncserver	sid	`0.9.15+dfsg-6`	fixed
Debian	libvncserver	forky	`0.9.15+dfsg-6`	fixed
Debian	libvncserver	trixie	`0.9.15+dfsg-1+deb13u2`	fixed
Debian	libvncserver	bookworm	`0.9.14+dfsg-1+deb12u2`	fixed
Ubuntu	libvncserver	noble	`0.9.14+dfsg-1ubuntu0.1`	fixed
Ubuntu	libvncclient1	noble	`0.9.14+dfsg-1ubuntu0.1`	fixed
Ubuntu	libvncserver-dev	noble	`0.9.14+dfsg-1ubuntu0.1`	fixed
Ubuntu	libvncserver1	noble	`0.9.14+dfsg-1ubuntu0.1`	fixed
Ubuntu	libvncserver	noble	`0.9.13+dfsg-5`	fixed
Ubuntu	libvncserver	22.04	`0.9.13+dfsg-3`	vulnerable
Ubuntu	libvncserver	22.04	`0.9.13+dfsg-3build1`	vulnerable
Ubuntu	libvncserver	22.04	`0.9.13+dfsg-3build2`	vulnerable
Ubuntu	libvncserver	22.04	`0.9.13+dfsg-3ubuntu0.1`	fixed
Ubuntu	libvncserver	24.04	`0.9.14+dfsg-1`	vulnerable
Ubuntu	libvncserver	24.04	`0.9.14+dfsg-1build1`	vulnerable
Ubuntu	libvncserver	24.04	`0.9.14+dfsg-1build2`	vulnerable
Ubuntu	libvncserver	24.04	`0.9.14+dfsg-1ubuntu0.1`	fixed
Ubuntu	libvncserver	25.10	`0.9.14+dfsg-1build2`	vulnerable
Ubuntu	libvncserver	25.10	`0.9.15+dfsg-1`	vulnerable
Ubuntu	libvncserver	25.10	`0.9.15+dfsg-1ubuntu0.1`	fixed
Ubuntu	libvncserver	26.04	`0.9.15+dfsg-1`	vulnerable
Ubuntu	libvncserver	26.04	`0.9.15+dfsg-2`	vulnerable
Ubuntu	libvncserver	26.04	`0.9.15+dfsg-3`	vulnerable
Ubuntu	libvncserver	26.04	`0.9.15+dfsg-3ubuntu0.1`	fixed
Suse	LibVNCServer	linux enterprise module for package hub 15 sp3	`0.9.10-150000.4.29.1`	fixed
Suse	LibVNCServer	linux enterprise module for package hub 15 sp4	`0.9.10-150000.4.29.1`	fixed
Suse	LibVNCServer	linux enterprise workstation extension 15 sp3	`0.9.10-150000.4.29.1`	fixed
Opensuse	LibVNCServer	leap 15.3	`0.9.10-150000.4.29.1`	fixed
Opensuse	LibVNCServer	leap 15.4	`0.9.10-150000.4.29.1`	fixed
Suse	LibVNCServer	linux enterprise module for package hub 15 sp4	`0.9.13-150400.3.3.1`	fixed
Suse	LibVNCServer	linux enterprise workstation extension 15 sp4	`0.9.13-150400.3.3.1`	fixed
Opensuse	LibVNCServer	leap 15.4	`0.9.13-150400.3.3.1`	fixed
Suse	LibVNCServer	linux enterprise software development kit 12 sp5	`0.9.9-17.41.1`	fixed
Suse	LibVNCServer	linux enterprise server 12 sp5	`0.9.9-17.41.1`	fixed
Suse	LibVNCServer	linux enterprise server for sap applications 12 sp5	`0.9.9-17.41.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	libvncserver	source	sid	`0.9.13+dfsg-5`	not yet assigned	Not reported	[1019228]
Debian	libvncserver	source	forky	`0.9.13+dfsg-5`	not yet assigned	Not reported	[1019228]
Debian	libvncserver	source	trixie	`0.9.13+dfsg-5`	not yet assigned	Not reported	[1019228]
Debian	libvncserver	source	bookworm	`0.9.13+dfsg-5`	not yet assigned	Not reported	[1019228]
Ubuntu	libvncserver	deb	noble	`0.9.14+dfsg-1ubuntu0.1`	Not reported	Not reported	Not reported
Ubuntu	libvncclient1	deb	noble	`0.9.14+dfsg-1ubuntu0.1`	Not reported	Not reported	Not reported
Ubuntu	libvncserver-dev	deb	noble	`0.9.14+dfsg-1ubuntu0.1`	Not reported	Not reported	Not reported
Ubuntu	libvncserver1	deb	noble	`0.9.14+dfsg-1ubuntu0.1`	Not reported	Not reported	Not reported
Ubuntu	libvncserver	deb	noble	`0.9.13+dfsg-5`	Not reported	Not reported	Not reported
Ubuntu	libvncserver	deb	22.04	`0.9.13+dfsg-3ubuntu0.1`	Not reported	USN-8463-1	Not reported
Ubuntu	libvncserver	deb	24.04	`0.9.14+dfsg-1ubuntu0.1`	Not reported	USN-8463-1	Not reported
Ubuntu	libvncserver	deb	25.10	`0.9.15+dfsg-1ubuntu0.1`	Not reported	USN-8463-1	Not reported
Ubuntu	libvncserver	deb	26.04	`0.9.15+dfsg-3ubuntu0.1`	Not reported	USN-8463-1	Not reported
Suse	LibVNCServer	rpm	linux enterprise module for package hub 15 sp3	`0.9.10-150000.4.29.1`	Not reported	SUSE-SU-2022:3990-1	Not reported
Suse	LibVNCServer	rpm	linux enterprise module for package hub 15 sp4	`0.9.10-150000.4.29.1`	Not reported	SUSE-SU-2022:3990-1	Not reported
Suse	LibVNCServer	rpm	linux enterprise workstation extension 15 sp3	`0.9.10-150000.4.29.1`	Not reported	SUSE-SU-2022:3990-1	Not reported
Opensuse	LibVNCServer	rpm	leap 15.3	`0.9.10-150000.4.29.1`	Not reported	SUSE-SU-2022:3990-1	Not reported
Opensuse	LibVNCServer	rpm	leap 15.4	`0.9.10-150000.4.29.1`	Not reported	SUSE-SU-2022:3990-1	Not reported
Suse	LibVNCServer	rpm	linux enterprise module for package hub 15 sp4	`0.9.13-150400.3.3.1`	Not reported	SUSE-SU-2022:3540-1	Not reported
Suse	LibVNCServer	rpm	linux enterprise workstation extension 15 sp4	`0.9.13-150400.3.3.1`	Not reported	SUSE-SU-2022:3540-1	Not reported
Opensuse	LibVNCServer	rpm	leap 15.4	`0.9.13-150400.3.3.1`	Not reported	SUSE-SU-2022:3540-1	Not reported
Suse	LibVNCServer	rpm	linux enterprise software development kit 12 sp5	`0.9.9-17.41.1`	Not reported	SUSE-SU-2022:4330-1	Not reported
Suse	LibVNCServer	rpm	linux enterprise server 12 sp5	`0.9.9-17.41.1`	Not reported	SUSE-SU-2022:4330-1	Not reported
Suse	LibVNCServer	rpm	linux enterprise server for sap applications 12 sp5	`0.9.9-17.41.1`	Not reported	SUSE-SU-2022:4330-1	Not reported

[Debian bug #1019228]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libvncclient1]Fixed
Source package: [libvncserver]
Details (2)
- 0.9.14+dfsg-1+deb12u2 · amd64 · bookworm
  Fixed · Fixed: 0.9.13+dfsg-5
  usn · libvncserver · debian · bookworm; usn · libvncserver · debian · 12
- 0.9.14+dfsg-1+deb12u2 · arm64 · bookworm
  Fixed · Fixed: 0.9.13+dfsg-5
  usn · libvncserver · debian · bookworm; usn · libvncserver · debian · 12
[libvncserver1]Fixed
Source package: [libvncserver]
Details (2)
- 0.9.14+dfsg-1+deb12u2 · amd64 · bookworm
  Fixed · Fixed: 0.9.13+dfsg-5
  usn · libvncserver · debian · bookworm; usn · libvncserver · debian · 12
- 0.9.14+dfsg-1+deb12u2 · arm64 · bookworm
  Fixed · Fixed: 0.9.13+dfsg-5
  usn · libvncserver · debian · bookworm; usn · libvncserver · debian · 12
[libvncserver-dev]Fixed
Source package: [libvncserver]
Details (2)
- 0.9.14+dfsg-1+deb12u2 · amd64 · bookworm
  Fixed · Fixed: 0.9.13+dfsg-5
  usn · libvncserver · debian · bookworm; usn · libvncserver · debian · 12
- 0.9.14+dfsg-1+deb12u2 · arm64 · bookworm
  Fixed · Fixed: 0.9.13+dfsg-5
  usn · libvncserver · debian · bookworm; usn · libvncserver · debian · 12

[Debian 13 (Trixie)]

[libvncclient1]Fixed
Source package: [libvncserver]
Details (2)
- 0.9.15+dfsg-1+deb13u2 · amd64 · trixie
  Fixed · Fixed: 0.9.13+dfsg-5
  usn · libvncserver · debian · 13
- 0.9.15+dfsg-1+deb13u2 · arm64 · trixie
  Fixed · Fixed: 0.9.13+dfsg-5
  usn · libvncserver · debian · 13
[libvncserver1]Fixed
Source package: [libvncserver]
Details (2)
- 0.9.15+dfsg-1+deb13u2 · amd64 · trixie
  Fixed · Fixed: 0.9.13+dfsg-5
  usn · libvncserver · debian · 13
- 0.9.15+dfsg-1+deb13u2 · arm64 · trixie
  Fixed · Fixed: 0.9.13+dfsg-5
  usn · libvncserver · debian · 13
[libvncserver-dev]Fixed
Source package: [libvncserver]
Details (2)
- 0.9.15+dfsg-1+deb13u2 · amd64 · trixie
  Fixed · Fixed: 0.9.13+dfsg-5
  usn · libvncserver · debian · 13
- 0.9.15+dfsg-1+deb13u2 · arm64 · trixie
  Fixed · Fixed: 0.9.13+dfsg-5
  usn · libvncserver · debian · 13

Observed: Oct 23, 2026, 5:51:15 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]