CVE-2020-11061
Heap-based Buffer Overflow in Bareos Director
In Bareos Director less than or equal to 16.2.10, 17.2.9, 18.2.8, and 19.2.7, a heap overflow allows a malicious client to corrupt the director's memory via oversized digest strings sent during initialization of a verify job. Disabling verify jobs mitigates the problem. This issue is also patched in Bareos versions 19.2.8, 18.2.9 and 17.2.10.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
6.0
Heap-based Buffer Overflow in Bareos Director
In Bareos Director less than or equal to 16.2.10, 17.2.9, 18.2.8, and 19.2.7, a heap overflow allows a malicious client to corrupt the director's memory via oversized digest strings sent during initialization of a verify job. Disabling verify jobs mitigates the problem. This issue is also patched in Bareos versions 19.2.8, 18.2.9 and 17.2.10.
- Record
CVE-2020-11061- CVSS 3.1
- 6.0 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L - Weakness
- CWE-122
- Updated
- 2026-11-02
EUVDEUVD-2020-3438
6.0
In Bareos Director less than or equal to 16.2.10, 17.2.9, 18.2.8, and 19.2.7, a heap overflow allows a malicious client to corrupt the director's memory via oversized digest strings sent during initialization of a verify job. Disabling verify jobs mitigates the problem. This issue is also patched in Bareos versions 19.2.8, 18.2.9 and 17.2.10.
- Record
EUVD-2020-3438- CVSS 3.1
- 6.0 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L - Updated
- 2026-11-03
NVD
6.0
In Bareos Director less than or equal to 16.2.10, 17.2.9, 18.2.8, and 19.2.7, a heap overflow allows a malicious client to corrupt the director's memory via oversized digest strings sent during initialization of a verify job. Disabling verify jobs mitigates the problem. This issue is also patched in Bareos versions 19.2.8, 18.2.9 and 17.2.10.
- Record
CVE-2020-11061- CVSS 3.1
- 6.0 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L - CVSS 3.1
- 7.4 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L - CVSS 2.0
- 6.0 Medium
AV:N/AC:M/Au:S/C:P/I:P/A:P - Weakness
- CWE-122, CWE-787
- Updated
- 2026-11-02
OSVALPINE-CVE-2020-11061
7.4
In Bareos Director less than or equal to 16.2.10, 17.2.9, 18.2.8, and 19.2.7, a heap overflow allows a malicious client to corrupt the director's memory via oversized digest strings sent during initialization of a verify job. Disabling verify jobs mitigates the problem. This issue is also patched in Bareos versions 19.2.8, 18.2.9 and 17.2.10.
- Record
ALPINE-CVE-2020-11061- CVSS 3.1
- 7.4 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L - Updated
- 2026-11-03
OSV
7.4
In Bareos Director less than or equal to 16.2.10, 17.2.9, 18.2.8, and 19.2.7, a heap overflow allows a malicious client to corrupt the director's memory via oversized digest strings sent during initialization of a verify job. Disabling verify jobs mitigates the problem. This issue is also patched in Bareos versions 19.2.8, 18.2.9 and 17.2.10.
- Record
CVE-2020-11061- CVSS 3.1
- 7.4 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L - Updated
- 2026-11-02
OSVDEBIAN-CVE-2020-11061
7.4
In Bareos Director less than or equal to 16.2.10, 17.2.9, 18.2.8, and 19.2.7, a heap overflow allows a malicious client to corrupt the director's memory via oversized digest strings sent during initialization of a verify job. Disabling verify jobs mitigates the problem. This issue is also patched in Bareos versions 19.2.8, 18.2.9 and 17.2.10.
- Record
DEBIAN-CVE-2020-11061- CVSS 3.1
- 7.4 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L - Updated
- 2026-11-02
OSVUBUNTU-CVE-2020-11061
6.0
In Bareos Director less than or equal to 16.2.10, 17.2.9, 18.2.8, and 19.2.7, a heap overflow allows a malicious client to corrupt the director's memory via oversized digest strings sent during initialization of a verify job. Disabling verify jobs mitigates the problem. This issue is also patched in Bareos versions 19.2.8, 18.2.9 and 17.2.10.
- Record
UBUNTU-CVE-2020-11061- CVSS 3.1
- 6.0 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L - CVSS 3.1
- 7.4 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
bareosAlpine:v3.12 |
17.2.4 up to 18.2.9-r0 | 18.2.9-r0 |
bareosAlpine:v3.13 |
17.2.4 up to 19.2.8-r0 | 19.2.8-r0 |
bareosAlpine:v3.14 |
17.2.4 up to 19.2.8-r0 | 19.2.8-r0 |
bareosAlpine:v3.15 |
17.2.4 up to 19.2.8-r0 | 19.2.8-r0 |
bareosAlpine:v3.16 |
17.2.4 up to 19.2.8-r0 | 19.2.8-r0 |
bareosAlpine:v3.17 |
17.2.4 up to 19.2.8-r0 | 19.2.8-r0 |
bareosAlpine:v3.18 |
17.2.4 up to 19.2.8-r0 | 19.2.8-r0 |
bareosAlpine:v3.19 |
17.2.4 up to 19.2.8-r0 | 19.2.8-r0 |
bareosAlpine:v3.20 |
17.2.4 up to 19.2.8-r0 | 19.2.8-r0 |
bareosAlpine:v3.21 |
17.2.4 up to 19.2.8-r0 | 19.2.8-r0 |
Show 11 moreShow less
| Package | Affected | Fixed |
|---|---|---|
bareosAlpine:v3.22 |
17.2.4 up to 19.2.8-r0 | 19.2.8-r0 |
bareosAlpine:v3.23 |
17.2.4 up to 19.2.8-r0 | 19.2.8-r0 |
bareosAlpine:v3.24 |
17.2.4 up to 19.2.8-r0 | 19.2.8-r0 |
baculaDebian:12 |
before 9.6.5-1 | 9.6.5-1 |
baculaDebian:13 |
before 9.6.5-1 | 9.6.5-1 |
baculaDebian:14 |
before 9.6.5-1 | 9.6.5-1 |
baculaDebian:9 |
before 7.4.4+dfsg-6+deb9u2, plus listed versions 7.4.4+dfsg-67.4.4+dfsg-6+deb9u1 |
7.4.4+dfsg-6+deb9u2 |
baculaUbuntu:16.04:LTS |
All versions, plus listed versions 5.2.6+dfsg-9.1ubuntu47.0.5+dfsg-47.0.5+dfsg-4build17.0.5+dfsg-4ubuntu0.1 |
None known |
bareosUbuntu:16.04:LTS |
All versions, plus listed versions 14.2.5-114.2.5-214.2.6-114.2.6-214.2.6-2build114.2.6-3 |
None known |
baculaUbuntu:18.04:LTS |
All versions, plus listed versions 7.4.4+dfsg-69.0.4+dfsg-39.0.5+dfsg-19.0.5+dfsg-39.0.5+dfsg-49.0.6-19.0.6-1build1 |
None known |
baculaUbuntu:20.04:LTS |
All versions, plus listed versions 9.4.2-2ubuntu39.4.2-2ubuntu49.4.2-2ubuntu5 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, aliases, references | OSV | |
| aliases | EUVD | |
| first indexed | CVE List, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-11061 is a medium vulnerability (CVSS 6.0) in Bareos, published July 10, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.24%, the 69th percentile. Fixed in bareos 18.2.9-r0.
References
github.com/bareos/bareos/security/advisories/GHSA-mm45-cg35-54j4
bugs.bareos.org/view.php?id=1210
lists.debian.org/debian-lts-announce/2020/08/msg00051.html
security.alpinelinux.org/vuln/CVE-2020-11061
security-tracker.debian.org/tracker/CVE-2020-11061
ubuntu.com/security/CVE-2020-11061
cve.org/CVERecord?id=CVE-2020-11061