Mac OS X 10.2.2 allows remote attackers to cause a denial of service by accessing the CUPS Printing Web Administration utility, aka "CUPS Printing Web Administration is Remotely Accessible."

Double free vulnerability in the get_vrFilter function in servers/slapd/filter.c in OpenLDAP 2.4.40 allows remote attackers to cause a denial of service (crash) via a crafted search query with a matched values control.

The build_tablename function in pgsql.c in the PostgreSQL (aka pgsql) extension in PHP through 5.6.7 does not validate token extraction for table names, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted name.

The TCP implementation in the kernel in Apple iOS before 8.3, Apple OS X before 10.10.3, and Apple TV before 7.2 does not properly implement the Urgent (aka out-of-band data) mechanism, which allows remote attackers to cause a denial of service via crafted packets.

libnetcore in Apple iOS before 8.3, Apple OS X before 10.10.3, and Apple TV before 7.2 allows attackers to cause a denial of service (memory corruption and application crash) via a crafted configuration profile.

The xmlreader in libxml allows remote attackers to cause a denial of service (memory consumption) via crafted XML data, related to an XML Entity Expansion (XEE) attack.

Multiple unspecified vulnerabilities in BOMArchiveHelper in Mac OS X allow user-assisted remote attackers to cause a denial of service (application crash) via unspecified vectors related to (1) certain KERN_PROTECTION_FAILURE thread crashes and (2) certain KERN_INVALID_ADDRESS thread crashes, as discovered with the "iSec Partners FileP fuzzer".

The (1) mod_dav_svn and (2) svnserve servers in Subversion 1.6.0 through 1.7.19 and 1.8.0 through 1.8.11 allow remote attackers to cause a denial of service (assertion failure and abort) via crafted parameter combinations related to dynamically evaluated revision numbers.

The lua_websocket_read function in lua_request.c in the mod_lua module in the Apache HTTP Server through 2.4.12 allows remote attackers to cause a denial of service (child-process crash) by sending a crafted WebSocket Ping frame after a Lua script has called the wsupgrade function.

Buffer overflow in the JavaScript implementation in Safari on Apple Mac OS X 10.4 allows remote attackers to cause a denial of service (application crash) via a long argument to the exec method of a regular expression.

The mod_dav_svn Apache HTTPD server module in Apache Subversion 1.7.x before 1.7.19 and 1.8.x before 1.8.11 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a request for a URI that triggers a lookup for a virtual transaction name that does not exist.

BIND before 9.2.6-P1 and 9.3.x before 9.3.2-P1 allows remote attackers to cause a denial of service (crash) via certain SIG queries, which cause an assertion failure when multiple RRsets are returned.

Apple Safari 2.0.4/419.3 allows remote attackers to cause a denial of service (application crash) via a DHTML setAttributeNode function call with zero arguments, which triggers a null dereference.

An issue was discovered in certain Apple products. iOS before 10.3.3 is affected. watchOS before 3.2.3 is affected. The issue involves the "Messages" component. It allows remote attackers to cause a denial of service (memory consumption and application crash).

An issue was discovered in certain Apple products. iOS before 11 is affected. macOS before 10.13 is affected. tvOS before 11 is affected. watchOS before 4 is affected. The issue involves the "libc" component. It allows remote attackers to cause a denial of service (resource consumption) via a crafted string that is mishandled by the glob function.

parser.c in libxml2 before 2.9.2 does not properly prevent entity expansion even when entity substitution has been disabled, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted XML document containing a large number of nested entity references, a variant of the "billion laughs" attack.

The handle_headers function in mod_proxy_fcgi.c in the mod_proxy_fcgi module in the Apache HTTP Server 2.4.10 allows remote FastCGI servers to cause a denial of service (buffer over-read and daemon crash) via long response headers.

Safari in Apple OS X before 10.10 allows remote attackers to cause a denial of service (universal Push Notification outage) via a web site that triggers an uncaught SafariNotificationAgent exception by providing a crafted Push Notification.

Integer overflow in AFP Server for Apple Mac OS X 10.3.9 and 10.4.7 allows remote attackers to cause a denial of service (crash) and execute arbitrary code via unknown vectors.

The WebTextRenderer(WebInternal) _CG_drawRun:style:geometry: function in Apple Safari 2.0.3 allows remote attackers to cause a denial of service (application crash) via an HTML LI tag with a large VALUE attribute (list item number), which triggers a null dereference in QPainter::drawText, probably due to a failed memory allocation that uses the VALUE.

Apple Mac OS X Safari 2.0.3, 1.3.1, and possibly other versions allows remote attackers to cause a denial of service (CPU consumption and crash) via a TD element with a large number in the rowspan attribute.

Unspecified vulnerability in the _cg_TIFFSetField function in Mac OS X 10.4.6 and earlier, as used in applications that use ImageIO or AppKit, allows remote attackers to cause a denial of service (application crash) via a crafted TIFF image that triggers a null dereference.

OpenLDAP in Apple Mac OS X 10.4 up to 10.4.6 allows remote attackers to cause a denial of service (crash) via an invalid LDAP request that triggers an assert error.

Multiple Apple Mac OS X 10.4 applications might allow context-dependent attackers to cause a denial of service (application crash) via a crafted OpenEXR (.exr) image file, which triggers the crash when opening a folder using Finder, displaying the image in Safari, or using Preview to open the file.

The mod_dav_svn Apache HTTPD server module in Apache Subversion 1.x before 1.7.19 and 1.8.x before 1.8.11 allows remote attackers to cause a denial of service (NULL pointer dereference and server crash) via a REPORT request for a resource that does not exist.

IPSec when used with VPN networks in Mac OS X 10.4 through 10.4.5 allows remote attackers to cause a denial of service (application crash) via unspecified vectors involving the "incorrect handling of error conditions".

SpringBoard Lock Screen in Apple iOS before 7.1 allows remote attackers to cause a denial of service (lock-screen hang) by leveraging a state-management error.

snmplib/mib.c in net-snmp 5.7.0 and earlier, when the -OQ option is used, allows remote attackers to cause a denial of service (snmptrapd crash) via a crafted SNMP trap message, which triggers a conversion to the variable type designated in the MIB file, as demonstrated by a NULL type in an ifMtu trap message.

CUPS in Mac OS X 10.3.9 and 10.4.2 does not properly close file descriptors when handling multiple simultaneous print jobs, which allows remote attackers to cause a denial of service (printing halt).

The network interface for Apple AirPort Express 6.x before Firmware Update 6.3, and AirPort Extreme 5.x before Firmware Update 5.7, allows remote attackers to cause a denial of service (unresponsive interface) via malformed packets.

Apple Safari allows remote attackers to cause a denial of service (application crash) via a crafted data:// URL.

libpcre in PCRE before 8.44 allows an integer overflow via a large number after a (?C substring.

CUPS in Mac OS X 10.3.9 and 10.4.2 allows remote attackers to cause a denial of service (CPU consumption) by sending a partial IPP request and closing the connection.

In filter.c in slapd in OpenLDAP before 2.4.50, LDAP search filters with nested boolean expressions can result in denial of service (daemon crash).

Integer overflow in the OZDocument::parseElement function in Apple Motion 5.0.7 allows remote attackers to cause a denial of service (application crash) via a (1) large or (2) small value in the subview attribute of a viewer element in a .motn file.

The scan function in ext/date/lib/parse_iso_intervals.c in PHP through 5.5.6 does not properly restrict creation of DateInterval objects, which might allow remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted interval specification.

Apple Darwin Streaming Server 5.5 and earlier allows remote attackers to cause a denial of service (application crash) via a URL with a filename containing a .cgi extension and an MS-DOS device name such as AUX, CON, PRN, COM1, or LPT1, a different vulnerability than CVE-2003-0421 and CVE-2003-0502.

Unspecified vulnerability in the Apple Mac OS X kernel before 10.4.2 allows remote attackers to cause a denial of service (kernel panic) via a crafted TCP packet, possibly related to source routing or loose source routing.

PictureViewer in QuickTime for Windows 6.5.2 allows remote attackers to cause a denial of service (application crash) via a GIF image with the maximum depth start value, possibly triggering an integer overflow.

A program using swift-nio-http2 is vulnerable to a denial of service attack caused by a network peer sending ALTSVC or ORIGIN frames. This attack affects all swift-nio-http2 versions from 1.0.0 to 1.19.1. This vulnerability is caused by a logical error after frame parsing but before frame handling. ORIGIN and ALTSVC frames are not currently supported by swift-nio-http2, and should be ignored. However, one code path that encounters them has a deliberate trap instead. This was left behind from the original development process and was never removed. Sending an ALTSVC or ORIGIN frame does not require any special permission, so any HTTP/2 connection peer may send such a frame. For clients, this means any server to which they connect may launch this attack. For servers, anyone they allow to connect to them may launch such an attack. The attack is low-effort: it takes very little resources to send one of these frames. The impact on availability is high: receiving the frame immediately crashes the server, dropping all in-flight connections and causing the service to need to restart. It is straightforward for an attacker to repeatedly send these frames, so attackers require very few resources to achieve a substantial denial of service. The attack does not have any confidentiality or integrity risks in and of itself. This is a controlled, intentional crash. However, sudden process crashes can lead to violations of invariants in services, so it is possible that this attack can be used to trigger an error condition that has confidentiality or integrity risks. The risk can be mitigated if untrusted peers can be prevented from communicating with the service. This mitigation is not available to many services. The issue is fixed by rewriting the parsing code to correctly handle the condition. The issue was found by automated fuzzing by oss-fuzz.

A denial of service issue was addressed with improved validation. This issue is fixed in iOS 12.4, watchOS 5.3. A remote attacker may cause an unexpected application termination.

Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.

Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service. The attacker requests a large amount of data from a specified resource over multiple streams. They manipulate window size and stream priority to force the server to queue the data in 1-byte chunks. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.

bzip2 allows remote attackers to cause a denial of service (hard drive consumption) via a crafted bzip2 file that causes an infinite loop (a.k.a "decompression bomb").

exif.c in PHP before 4.3.11 allows remote attackers to cause a denial of service (memory consumption and crash) via an EXIF header with a large IFD nesting level, which causes significant stack recursion.

The Security Framework in Apple Mac OS X 10.4 through 10.4.8 allows remote attackers to cause a denial of service (resource consumption) via certain public key values in an X.509 certificate that requires extra resources during signature verification. NOTE: this issue may be similar to CVE-2006-2940.

Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service. The attacker sends a stream of frames with an empty payload and without the end-of-stream flag. These frames can be DATA, HEADERS, CONTINUATION and/or PUSH_PROMISE. The peer spends time processing each frame disproportionate to attack bandwidth. This can consume excess CPU.

A logic issue was addressed with improved state management. This issue is fixed in macOS Catalina 10.15.2, Security Update 2019-002 Mojave, and Security Update 2019-007 High Sierra. A Mac may not lock immediately upon wake.