mod_auth_openidc is an authentication/authorization module for the Apache 2.x HTTP server that functions as an OpenID Connect Relying Party, authenticating users against an OpenID Connect Provider. When mod_auth_openidc versions prior to 2.4.9 are configured to use an unencrypted Redis cache (`OIDCCacheEncrypt off`, `OIDCSessionType server-cache`, `OIDCCacheType redis`), `mod_auth_openidc` wrongly performed argument interpolation before passing Redis requests to `hiredis`, which would perform it again and lead to an uncontrolled format string bug. Initial assessment shows that this bug does not appear to allow gaining arbitrary code execution, but can reliably provoke a denial of service by repeatedly crashing the Apache workers. This bug has been corrected in version 2.4.9 by performing argument interpolation only once, using the `hiredis` API. As a workaround, this vulnerability can be mitigated by setting `OIDCCacheEncrypt` to `on`, as cache keys are cryptographically hashed before use when this option is enabled.

An issue was discovered in uriparser before 0.9.6. It performs invalid free operations in uriNormalizeSyntax.

libjbig2dec.a in Artifex jbig2dec 0.13, as used in MuPDF and Ghostscript, has a NULL pointer dereference in the jbig2_huffman_get function in jbig2_huffman.c. For example, the jbig2dec utility will crash (segmentation fault) when parsing an invalid file.

In ImageMagick 7.0.5-7 Q16, a crafted file could trigger an assertion failure in the WriteBlob function in MagickCore/blob.c because of missing checks in the ReadOneJNGImage function in coders/png.c.

libEMF (aka ECMA-234 Metafile Library) through 1.0.11 allows denial of service (issue 1 of 2).

The readEncUInt30 function in util/read.c in libming 0.4.8 mishandles memory allocation. A crafted input will lead to a remote denial of service (NULL pointer dereference) attack against parser.c.

Qt SVG in Qt 5.0.0 through 5.15.2 and 6.0.0 through 6.2.1 has an out-of-bounds write in QtPrivate::QCommonArrayOps<QPainterPath::Element>::growAppend (called from QPainterPath::addPath and QPathClipper::intersect).

Two heap-overflow vulnerabilities exist in openSUSE/libsolv libsolv through 13 Dec 2020 in the decisionmap variable via the resolve_dependencies function at src/solver.c (line 1940 & line 1995), which could cause a remote Denial of Service.

Ghostscript GhostPDL 9.50 through 9.54.0 has a heap-based buffer overflow in sampled_data_finish (called from sampled_data_continue and interp).

In LibreCAD 2.2.0, a NULL pointer dereference in the HATCH handling of libdxfrw allows an attacker to crash the application using a crafted DXF document.

UltraJSON (aka ujson) through 5.1.0 has a stack-based buffer overflow in Buffer_AppendIndentUnchecked (called from encode). Exploitation can, for example, use a large amount of indentation.

Apache HTTP Server versions 2.4.20 to 2.4.43 When trace/debug was enabled for the HTTP/2 module and on certain traffic edge patterns, logging statements were made on the wrong connection, causing concurrent use of memory pools. Configuring the LogLevel of mod_http2 above "info" will mitigate this vulnerability for unpatched servers.

In LibTIFF 4.0.7, a memory leak vulnerability was found in the function TIFFReadDirEntryLong8Array in tif_dirread.c, which allows attackers to cause a denial of service via a crafted file.

Apache Log4j2 versions 2.0-alpha1 through 2.16.0 (excluding 2.12.3 and 2.3.1) did not protect from uncontrolled recursion from self-referential lookups. This allows an attacker with control over Thread Context Map data to cause a denial of service when a crafted string is interpreted. This issue was fixed in Log4j 2.17.0, 2.12.3, and 2.3.1.

GDAL 3.3.0 through 3.4.0 has a heap-based buffer overflow in PCIDSK::CPCIDSKFile::ReadFromFile (called from PCIDSK::CPCIDSKSegment::ReadFromFile and PCIDSK::CPCIDSKBinarySegment::CPCIDSKBinarySegment).

Ghostscript GhostPDL 9.50 through 9.53.3 has a use-after-free in sampled_data_sample (called from sampled_data_continue and interp).

An issue was discovered in uriparser before 0.9.6. It performs invalid free operations in uriFreeUriMembers and uriMakeOwner.

The function GfxImageColorMap::getGray in GfxState.cc in Poppler 0.54.0 allows remote attackers to cause a denial of service (stack-based buffer over-read and application crash) via a crafted PDF document, related to missing color-map validation in ImageOutputDev.cc.

In Poppler 0.54.0, a memory leak vulnerability was found in the function Object::initArray in Object.cc, which allows attackers to cause a denial of service via a crafted file.

In ImageMagick 7.0.5-5, the ReadARTImage function in coders/art.c allows attackers to cause a denial of service (memory leak) via a crafted .art file.

OpenEXR 3.1.x before 3.1.4 has a heap-based buffer overflow in Imf_3_1::LineCompositeTask::execute (called from IlmThread_3_1::NullThreadPoolProvider::addTask and IlmThread_3_1::ThreadPool::addGlobalTask). NOTE: db217f2 may be inapplicable.

In lrzip 0.631, a stack buffer overflow was found in the function get_fileinfo in lrzip.c:979, which allows attackers to cause a denial of service via a crafted file.

In LibTIFF 4.0.8, there is a memory leak in tif_jbig.c. A crafted TIFF document can lead to a memory leak resulting in a remote denial of service attack.

Stack buffer overflow in GfxState.cc in pdftocairo in Poppler before 0.56 allows remote attackers to cause a denial of service (application crash) via a crafted PDF document.

In lrzip 0.631, a stack buffer overflow was found in the function get_fileinfo in lrzip.c:1074, which allows attackers to cause a denial of service via a crafted file.

In ImageMagick 7.0.5-5, a crafted RLE image can trigger a crash because of incorrect EOF handling in coders/rle.c.

In Poppler 0.54.0, a memory leak vulnerability was found in the function gmalloc in gmem.cc, which allows attackers to cause a denial of service via a crafted file.

In ImageMagick 7.0.5-7 Q16, a crafted file could trigger an assertion failure in the ResetImageProfileIterator function in MagickCore/profile.c because of missing checks in the ReadDDSImage function in coders/dds.c.

An issue was discovered in OpenEXR before 2.4.1. There is an out-of-bounds write in copyIntoFrameBuffer in ImfMisc.cpp.

util/outputtxt.c in libming 0.4.8 mishandles memory allocation. A crafted input will lead to a remote denial of service (NULL pointer dereference) attack.

In LibTIFF 4.0.7, a memory leak vulnerability was found in the function OJPEGReadHeaderInfoSecTablesQTable in tif_ojpeg.c, which allows attackers to cause a denial of service via a crafted file.

An issue was discovered in OpenEXR before 2.4.1. There is an out-of-bounds read and write in DwaCompressor::uncompress in ImfDwaCompressor.cpp when handling the UNKNOWN compression case.

Using the Location API in a loop could have caused severe application hangs and crashes. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

In ImageMagick 7.0.5-5, the ReadBMPImage function in bmp.c allows attackers to cause a denial of service (memory leak) via a crafted file.

In ImageMagick 7.0.5-5, the ReadMATImage function in mat.c allows attackers to cause a denial of service (memory leak) via a crafted file.

In ImageMagick 7.0.5-5, the ReadXWDImage function in xwd.c allows attackers to cause a denial of service (memory leak) via a crafted file.

The flac_buffer_copy function in flac.c in libsndfile 1.0.28 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via a crafted audio file.

In ImageMagick 7.0.5-5, the ReadPCXImage function in pcx.c allows attackers to cause a denial of service (memory leak) via a crafted file.

The ReadSVGImage function in svg.c in ImageMagick 7.0.5-4 allows remote attackers to consume an amount of available memory via a crafted file.

The ReadSGIImage function in sgi.c in ImageMagick 7.0.5-4 allows remote attackers to consume an amount of available memory via a crafted file.

In ImageMagick 7.0.5-5, the ReadEXRImage function in exr.c allows attackers to cause a denial of service (memory leak) via a crafted file.

In ImageMagick 7.0.5-5, the ReadEPTImage function in ept.c allows attackers to cause a denial of service (memory leak) via a crafted file.

In ImageMagick 7.0.5-5, the ReadMTVImage function in mtv.c allows attackers to cause a denial of service (memory leak) via a crafted file.

In ImageMagick 7.0.5-5, the ReadAAIImage function in aai.c allows attackers to cause a denial of service (memory leak) via a crafted file.

In ImageMagick 7.0.5-5, the ReadSFWImage function in sfw.c allows attackers to cause a denial of service (memory leak) via a crafted file.

The flac_buffer_copy function in flac.c in libsndfile 1.0.28 allows remote attackers to cause a denial of service (invalid read and application crash) via a crafted audio file.

The cr_tknzr_parse_comment function in cr-tknzr.c in libcroco 0.6.12 allows remote attackers to cause a denial of service (memory allocation error) via a crafted CSS file.

J2B in libopenmpt before 0.4.2 allows an assertion failure during file parsing with debug STLs.