CVE Tools
Sign in

CVE-2019-7307

Apport contains a TOCTTOU vulnerability when reading the users ~/.apport-ignore.xml

Published: Aug 29, 2019Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-367
NVD MITRE
7.0CVSSHIGH
EPSS Score
0.3%
Top 77.1%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

Apport before versions 2.14.1-0ubuntu3.29+esm1, 2.20.1-0ubuntu2.19, 2.20.9-0ubuntu7.7, 2.20.10-0ubuntu27.1, 2.20.11-0ubuntu5 contained a TOCTTOU vulnerability when reading the users ~/.apport-ignore.xml file, which allows a local attacker to replace this file with a symlink to any other file on the system and so cause Apport to include the contents of this other file in the resulting crash report. The crash report could then be read by that user either by causing it to be uploaded and reported to Launchpad, or by leveraging some other vulnerability to read the resulting crash report, and so allow the user to read arbitrary files on the system.

CVSS Vector Breakdown

AV:LAC:HPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-367

Affected Products

apportUbuntu
On-prem
Operating Systems / linux-distro
apportapport project
On-prem
Operating Systems / linux-distro
UbuntuCanonical Ltd.
On-premOS
Operating Systems / linux-distro
ApportCanonical Ltd.
On-prem
Operating Systems / linux-distro
ubuntucommercialGBOperating Systemsaka ubuntu linux
apport projectoss-projectOperating Systems
canonical ltd.commercialGBOperating Systemsaka canonical

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-7307.html
people.canonical.com
https://bugs.launchpad.net/ubuntu/%2Bsource/apport/%2Bbug/1830858
bugs.launchpad.net
http://packetstormsecurity.com/files/172858/Ubuntu-Apport-Whoopsie-DoS-Integer-Overflow.html
packetstormsecurity.com
and 5 more references View all →

Timeline

Published
Aug 29, 2019
Last Updated
Nov 21, 2024

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2019-7307 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows