UBUNTU-CVE-2021-3826

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Source
https://ubuntu.com/security/CVE-2021-3826
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3826.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2021-3826
Upstream
Published
2022-09-01T21:15:00Z
Modified
2025-07-18T16:46:30Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

Heap/stack buffer overflow in the dlang_lname function in d-demangle.c in libiberty allows attackers to potentially cause a denial of service (segmentation fault and crash) via a crafted mangled symbol.

References

Affected packages

Ubuntu:Pro:16.04:LTS / gdb

Package

Name
gdb
Purl
pkg:deb/ubuntu/gdb@7.11.1-0ubuntu1~16.5+esm1?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

7.*

7.10-1ubuntu2
7.10-1ubuntu3
7.10.1-0ubuntu1
7.10.90.20160215-0ubuntu2
7.10.90.20160220-0ubuntu1
7.11-0ubuntu1
7.11.1-0ubuntu1~16.04
7.11.1-0ubuntu1~16.5
7.11.1-0ubuntu1~16.5+esm1

Ubuntu:Pro:18.04:LTS / gdb

Package

Name
gdb
Purl
pkg:deb/ubuntu/gdb@8.1.1-0ubuntu1+esm1?arch=source&distro=esm-infra/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

8.*

8.0.1-0ubuntu1
8.0.1-0ubuntu2
8.0.1-0ubuntu3
8.1-0ubuntu1
8.1-0ubuntu2
8.1-0ubuntu3
8.1-0ubuntu3.1
8.1-0ubuntu3.2
8.1.1-0ubuntu1
8.1.1-0ubuntu1+esm1

Ubuntu:22.04:LTS / gcc-11

Package

Name
gcc-11
Purl
pkg:deb/ubuntu/gcc-11@11.4.0-1ubuntu1~22.04?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

11.*

11.2.0-7ubuntu2
11.2.0-10ubuntu1
11.2.0-12ubuntu1
11.2.0-13ubuntu1
11.2.0-14ubuntu1
11.2.0-16ubuntu1
11.2.0-18ubuntu1
11.2.0-19ubuntu1
11.3.0-1ubuntu1~22.04
11.3.0-1ubuntu1~22.04.1
11.4.0-1ubuntu1~22.04

Ubuntu:22.04:LTS / libiberty

Package

Name
libiberty
Purl
pkg:deb/ubuntu/libiberty@20211102-1build1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

Other

20210106-1build1
20211102-1
20211102-1build1

Ubuntu:24.04:LTS / gcc-11

Package

Name
gcc-11
Purl
pkg:deb/ubuntu/gcc-11@11.4.0-9ubuntu1?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

11.*

11.4.0-4ubuntu1
11.4.0-5ubuntu1
11.4.0-6ubuntu1
11.4.0-7ubuntu2
11.4.0-9ubuntu1

Ubuntu:25.04 / gcc-11

Package

Name
gcc-11
Purl
pkg:deb/ubuntu/gcc-11@11.5.0-2ubuntu1?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

11.*

11.5.0-1ubuntu1
11.5.0-2ubuntu1