Catalogo CVE

CVE-2012-0920

dropbear: CVE-2012-0920

Gravità: Medium
Published: Apr 23, 2012, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 6.42% · Oct 22, 2026

Use-after-free vulnerability in Dropbear SSH Server 0.52 through 2012.54, when command restriction and public key authentication are enabled, allows remote authenticated users to execute arbitrary code and bypass command restrictions via multiple crafted command requests, related to "channels concurrency."

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	dropbear	sid	`2026.94-1`	fixed
Debian	dropbear	forky	`2026.94-1`	fixed
Debian	dropbear	trixie	`2025.89-1~deb13u1`	fixed
Debian	dropbear	trixie-security	`2025.89-1~deb13u1`	fixed
Debian	dropbear	bookworm	`2022.83-1+deb12u3`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	dropbear	source	sid	`2012.55-1`	low	Not reported	[661150]
Debian	dropbear	source	forky	`2012.55-1`	low	Not reported	[661150]
Debian	dropbear	source	trixie	`2012.55-1`	low	Not reported	[661150]
Debian	dropbear	source	bookworm	`2012.55-1`	low	Not reported	[661150]

[Debian bug #661150]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[dropbear]Corretta
Dettagli (2)
- 2022.83-1+deb12u3 · all · bookworm
  Corretta · Corretta: 2012.55-1
  dsa · dropbear · debian · bookworm; dsa · dropbear · debian · 12
- 2022.83-1+deb12u3 · all · bookworm
  Corretta · Corretta: 2012.55-1
  dsa · dropbear · debian · bookworm; dsa · dropbear · debian · 12
[dropbear-bin]Corretta
Pacchetto sorgente: [dropbear]
Dettagli (2)
- 2022.83-1+deb12u3 · amd64 · bookworm
  Corretta · Corretta: 2012.55-1
  dsa · dropbear · debian · bookworm; dsa · dropbear · debian · 12
- 2022.83-1+deb12u3 · arm64 · bookworm
  Corretta · Corretta: 2012.55-1
  dsa · dropbear · debian · bookworm; dsa · dropbear · debian · 12
[dropbear-initramfs]Corretta
Pacchetto sorgente: [dropbear]
Dettagli (2)
- 2022.83-1+deb12u3 · all · bookworm
  Corretta · Corretta: 2012.55-1
  dsa · dropbear · debian · bookworm; dsa · dropbear · debian · 12
- 2022.83-1+deb12u3 · all · bookworm
  Corretta · Corretta: 2012.55-1
  dsa · dropbear · debian · bookworm; dsa · dropbear · debian · 12
[dropbear-run]Corretta
Pacchetto sorgente: [dropbear]
Dettagli (2)
- 2022.83-1+deb12u3 · all · bookworm
  Corretta · Corretta: 2012.55-1
  dsa · dropbear · debian · bookworm; dsa · dropbear · debian · 12
- 2022.83-1+deb12u3 · all · bookworm
  Corretta · Corretta: 2012.55-1
  dsa · dropbear · debian · bookworm; dsa · dropbear · debian · 12

[Debian 13 (Trixie)]

[dropbear]Corretta
Dettagli (4)
- 2025.89-1~deb13u1 · all · trixie
  Corretta · Corretta: 2012.55-1
  dsa · dropbear · debian · 13
- 2025.89-1~deb13u1 · all · trixie
  Corretta · Corretta: 2012.55-1
  dsa · dropbear · debian · 13
- 2025.89-1~deb13u1 · all · trixie-security
  Corretta · Corretta: 2012.55-1
  dsa · dropbear · debian · 13
- 2025.89-1~deb13u1 · all · trixie-security
  Corretta · Corretta: 2012.55-1
  dsa · dropbear · debian · 13
[dropbear-bin]Corretta
Pacchetto sorgente: [dropbear]
Dettagli (4)
- 2025.89-1~deb13u1 · amd64 · trixie
  Corretta · Corretta: 2012.55-1
  dsa · dropbear · debian · 13
- 2025.89-1~deb13u1 · arm64 · trixie
  Corretta · Corretta: 2012.55-1
  dsa · dropbear · debian · 13
- 2025.89-1~deb13u1 · amd64 · trixie-security
  Corretta · Corretta: 2012.55-1
  dsa · dropbear · debian · 13
- 2025.89-1~deb13u1 · arm64 · trixie-security
  Corretta · Corretta: 2012.55-1
  dsa · dropbear · debian · 13
[dropbear-initramfs]Corretta
Pacchetto sorgente: [dropbear]
Dettagli (4)
- 2025.89-1~deb13u1 · all · trixie
  Corretta · Corretta: 2012.55-1
  dsa · dropbear · debian · 13
- 2025.89-1~deb13u1 · all · trixie
  Corretta · Corretta: 2012.55-1
  dsa · dropbear · debian · 13
- 2025.89-1~deb13u1 · all · trixie-security
  Corretta · Corretta: 2012.55-1
  dsa · dropbear · debian · 13
- 2025.89-1~deb13u1 · all · trixie-security
  Corretta · Corretta: 2012.55-1
  dsa · dropbear · debian · 13

Osservato: Oct 23, 2026, 5:05:54 PM UTC

Riferimenti

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