DEBIAN-CVE-2026-121996
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-121996
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-121996.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-121996
- Upstream
- CVE-2026-121996
- Published
- 2026-11-05T17:18:00Z
- Modified
- 2026-11-06T15:03:00Z
- Severity
-
- 8.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
A length validation flaw in gdbserver's agent-expression parser allows an unauthenticated remote attacker to read uninitialized heap memory from the gdbserver process and cause a denial of service. Disclosed heap content includes addresses suitable for defeating ASLR in further exploitation.
- References
Affected packages
Debian:12 / gdb
Package
- Name
- gdb
- Purl
- pkg:deb/debian/gdb?arch=source&distro=bookworm
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Affected versions
13.*
13.1-3
13.2-1
13.2-1+hurd.3
15.*
15.1-1
15.2-1
15.2-2~exp1
16.*
16.0.90.20250111-1~exp1
16.0.90.20250111-1~exp2
16.1-1
16.1-2
16.1-2+hurd.1
16.2-1
16.2-2
16.2-3
16.2-4
16.2-5
16.2-6
16.2-7
16.2-8
16.3-1
16.3-2
16.3-3
16.3-4~bpo13+1
16.3-4~bpo13+2
16.3-4
16.3-5~bpo13+1
16.3-5
17.*
17.0.50.20250905-1~exp1
17.0.90-1~exp1
17.0.90-1~exp2
17.1-1~bpo13+1
17.1-1
17.1-2
17.1-3
17.1-4
17.2-1~bpo13+1
17.2-1
18.*
18.1-1
18.1-2
18.1-3~bpo13+1
18.1-3
Debian:13 / gdb
Package
- Name
- gdb
- Purl
- pkg:deb/debian/gdb?arch=source&distro=trixie
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Debian:14 / gdb
Package
- Name
- gdb
- Purl
- pkg:deb/debian/gdb?arch=source&distro=forky
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected