CVE-2016-1252

APT - Repository Signing Bypass via Memory Allocation Failure

Severity Score

5.9

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The apt package in Debian jessie before 1.0.9.8.4, in Debian unstable before 1.4~beta2, in Ubuntu 14.04 LTS before 1.0.1ubuntu2.17, in Ubuntu 16.04 LTS before 1.2.15ubuntu0.2, and in Ubuntu 16.10 before 1.3.2ubuntu0.1 allows man-in-the-middle attackers to bypass a repository-signing protection mechanism by leveraging improper error handling when validating InRelease file signatures.

El paquete apt, en Debian jessie en versiones anteriores a la 1.0.9.8.4; Debian inestable en versiones anteriores a la 1.4~beta2; Ubuntu 14.04 LTS en versiones anteriores a la 1.0.1ubuntu2.17; Ubuntu 16.04 LTS en versiones anteriores a la 1.2.15ubuntu0.2 y en Ubuntu 16.10 en versiones anteriores a la 1.3.2ubuntu0.1, permite que atacantes Man-in-the-Middle (MitM) eludan un mecanismo de protección de firma de repositorios aprovechando la manipulación indebida de errores al validar las firmas de archivos InRelease.

apt suffers from a repository signing bypass via memory allocation failure.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-12-27 CVE Reserved
2016-12-14 CVE Published
2023-04-28 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-295: Improper Certificate Validation

CAPEC

References (6)

URL	Tag	Source
http://packetstormsecurity.com/files/140145/apt-Repository-Signing-Bypass.html	Issue Tracking

URL	Date	SRC
https://www.exploit-db.com/exploits/40916	2024-08-05
https://bugs.chromium.org/p/project-zero/issues/detail?id=1020	2024-08-05
https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1647467	2024-08-05

URL	Date	SRC

URL	Date	SRC
http://www.ubuntu.com/usn/USN-3156-1	2020-08-14
https://www.debian.org/security/2016/dsa-3733	2020-08-14

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Debian Search vendor "Debian"	Advanced Package Tool Search vendor "Debian" for product "Advanced Package Tool"	< 1.0.9.8.4 Search vendor "Debian" for product "Advanced Package Tool" and version " < 1.0.9.8.4"	-	Affected	in	Debian Search vendor "Debian"	Debian Linux Search vendor "Debian" for product "Debian Linux"	8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"	-	Safe
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		esm		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.10"		-		Affected