OpenPrinting CUPS is a standards-based, open source printing system for Linux and other Unix-like operating systems. Starting in version 2.0.0 and prior to version 2.4.6, CUPS logs data of free memory to the logging service AFTER the connection has been closed, when it should have logged the data right before. This is a use-after-free bug that impacts the entire cupsd process.
The exact cause of this issue is the function `httpClose(con->http)` being called in `scheduler/client.c`. The problem is that httpClose always, provided its argument is not null, frees the pointer at the end of the call, only for cupsdLogClient to pass the pointer to httpGetHostname. This issue happens in function `cupsdAcceptClient` if LogLevel is warn or higher and in two scenarios: there is a double-lookup for the IP Address (HostNameLookups Double is set in `cupsd.conf`) which fails to resolve, or if CUPS is compiled with TCP wrappers and the connection is refused by rules from `/etc/hosts.allow` and `/etc/hosts.deny`.
Version 2.4.6 has a patch for this issue.
CVSS Score
5.3
EPSS Score
0.0
Published
2023-06-22
A vulnerability was found in the libtiff library. This flaw causes a heap buffer overflow issue via the TIFFTAG_INKNAMES and TIFFTAG_NUMBEROFINKS values.
CVSS Score
5.5
EPSS Score
0.0
Published
2023-05-19
A denial-of-service issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.3. A user in a privileged network position may be able to cause a denial-of-service.
CVSS Score
6.5
EPSS Score
0.002
Published
2023-05-08
The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, iOS 15.7.6 and iPadOS 15.7.6, macOS Monterey 12.6.4, macOS Big Sur 11.7.7, tvOS 16.4, watchOS 9.4. An app may be able to execute arbitrary code with kernel privileges.
CVSS Score
7.8
EPSS Score
0.001
Published
2023-05-08
The issue was addressed with improved checks. This issue is fixed in macOS Ventura 13.3, macOS Monterey 12.6.4, macOS Big Sur 11.7.5. An app may be able to view sensitive information.
CVSS Score
5.5
EPSS Score
0.001
Published
2023-05-08
A privacy issue was addressed by moving sensitive data to a more secure location. This issue is fixed in macOS Ventura 13.3. An app may be able to access user-sensitive data.
CVSS Score
5.5
EPSS Score
0.001
Published
2023-05-08
The issue was addressed with improved checks. This issue is fixed in macOS Ventura 13.3, macOS Monterey 12.6.4, macOS Big Sur 11.7.5. An archive may be able to bypass Gatekeeper.
CVSS Score
5.5
EPSS Score
0.0
Published
2023-05-08
A race condition was addressed with improved locking. This issue is fixed in macOS Ventura 13.3. An app may bypass Gatekeeper checks.
CVSS Score
4.7
EPSS Score
0.0
Published
2023-05-08
The issue was addressed with additional restrictions on the observability of app states. This issue is fixed in macOS Ventura 13.3, iOS 15.7.4 and iPadOS 15.7.4, iOS 16.4 and iPadOS 16.4, watchOS 9.4. A sandboxed app may be able to determine which app is currently using the camera.
CVSS Score
3.6
EPSS Score
0.001
Published
2023-05-08
A privacy issue was addressed with improved private data redaction for log entries. This issue is fixed in macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, iOS 15.7.4 and iPadOS 15.7.4, tvOS 16.4, watchOS 9.4, macOS Big Sur 11.7.5. An app may be able to access information about a user’s contacts.
CVSS Score
3.3
EPSS Score
0.0
Published
2023-05-08