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CVE-2021-37956

Use after free in Offline use in Google Chrome on Android prior to 94.0.4606.54 allowed a remote attacker who had compromised the renderer process to potentially exploit heap corruption via a crafted HTML page.

CVSS 3.1 · 8.8 High EPSS 1.2% KEV · Not listed
CVE-2021-37712

Arbitrary File Creation/Overwrite via insufficient symlink protection due to directory cache poisoning using symbolic links

The npm package "tar" (aka node-tar) before versions 4.4.18, 5.0.10, and 6.1.9 has an arbitrary file creation/overwrite and arbitrary code execution vulnerability. node-tar aims to guarantee that any file whose location would be modified by a symbolic link is not extracted. This is, in part, achieved by ensuring that extracted directories are not symlinks. Additionally, in order to prevent unnecessary stat calls to determine whether a given path is a directory, paths are cached when directories are created. This logic was insufficient when extracting tar files that contained both a directory and a symlink with names containing unicode values that normalized to the same value. Additionally, on Windows systems, long path portions would resolve to the same file system entities as their 8.3 "short path" counterparts. A specially crafted tar archive could thus include a directory with one form of the path, followed by a symbolic link with a different string that resolves to the same file system entity, followed by a file using the first form. By first creating a directory, and then replacing that directory with a symlink that had a different apparent name that resolved to the same entry in the filesystem, it was thus possible to bypass node-tar symlink checks on directories, essentially allowing an untrusted tar file to symlink into an arbitrary location and subsequently extracting arbitrary files into that location, thus allowing arbitrary file creation and overwrite. These issues were addressed in releases 4.4.18, 5.0.10 and 6.1.9. The v3 branch of node-tar has been deprecated and did not receive patches for these issues. If you are still using a v3 release we recommend you update to a more recent version of node-tar. If this is not possible, a workaround is available in the referenced GHSA-qq89-hq3f-393p.

CVSS 3.1 · 8.2 High EPSS 1.9% KEV · Not listed
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Debian Microsoft Npmjs and 3 more
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Debian Linux Windows Tar and 7 more
CVE-2021-37701

Arbitrary File Creation/Overwrite via insufficient symlink protection due to directory cache poisoning using symbolic links

The npm package "tar" (aka node-tar) before versions 4.4.16, 5.0.8, and 6.1.7 has an arbitrary file creation/overwrite and arbitrary code execution vulnerability. node-tar aims to guarantee that any file whose location would be modified by a symbolic link is not extracted. This is, in part, achieved by ensuring that extracted directories are not symlinks. Additionally, in order to prevent unnecessary stat calls to determine whether a given path is a directory, paths are cached when directories are created. This logic was insufficient when extracting tar files that contained both a directory and a symlink with the same name as the directory, where the symlink and directory names in the archive entry used backslashes as a path separator on posix systems. The cache checking logic used both `\` and `/` characters as path separators, however `\` is a valid filename character on posix systems. By first creating a directory, and then replacing that directory with a symlink, it was thus possible to bypass node-tar symlink checks on directories, essentially allowing an untrusted tar file to symlink into an arbitrary location and subsequently extracting arbitrary files into that location, thus allowing arbitrary file creation and overwrite. Additionally, a similar confusion could arise on case-insensitive filesystems. If a tar archive contained a directory at `FOO`, followed by a symbolic link named `foo`, then on case-insensitive file systems, the creation of the symbolic link would remove the directory from the filesystem, but _not_ from the internal directory cache, as it would not be treated as a cache hit. A subsequent file entry within the `FOO` directory would then be placed in the target of the symbolic link, thinking that the directory had already been created. These issues were addressed in releases 4.4.16, 5.0.8 and 6.1.7. The v3 branch of node-tar has been deprecated and did not receive patches for these issues. If you are still using a v3 release we recommend you update to a more recent version of node-tar. If this is not possible, a workaround is available in the referenced GHSA-9r2w-394v-53qc.

CVSS 3.1 · 8.2 High EPSS 3.3% KEV · Not listed
Vendors
Debian Npmjs Oracle and 2 more
Products
Debian Linux Tar Graalvm and 6 more
CVE-2021-37695

Execution of JavaScript code using malformed HTML in ckeditor

ckeditor is an open source WYSIWYG HTML editor with rich content support. A potential vulnerability has been discovered in CKEditor 4 [Fake Objects](https://ckeditor.com/cke4/addon/fakeobjects) package. The vulnerability allowed to inject malformed Fake Objects HTML, which could result in executing JavaScript code. It affects all users using the CKEditor 4 plugins listed above at version < 4.16.2. The problem has been recognized and patched. The fix will be available in version 4.16.2.

CVSS 3.1 · 7.3 High EPSS 1.3% KEV · Not listed
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Products
CVE-2021-37622

Denial of service due to infinite loop in JpegBase::printStructure (#1)

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An infinite loop was found in Exiv2 versions v0.27.4 and earlier. The infinite loop is triggered when Exiv2 is used to modify the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when deleting the IPTC data, which is a less frequently used Exiv2 operation that requires an extra command line option (`-d I rm`). The bug is fixed in version v0.27.5.

CVSS 3.1 · 5.5 Medium EPSS 1.1% KEV · Not listed
CVE-2021-37621

Denial of service due to infinite loop in Image::printIFDStructure

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An infinite loop was found in Exiv2 versions v0.27.4 and earlier. The infinite loop is triggered when Exiv2 is used to print the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when printing the image ICC profile, which is a less frequently used Exiv2 operation that requires an extra command line option (`-p C`). The bug is fixed in version v0.27.5.

CVSS 3.1 · 5.5 Medium EPSS 1.1% KEV · Not listed
CVE-2021-37620

Out-of-bounds read in XmpTextValue::read()

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An out-of-bounds read was found in Exiv2 versions v0.27.4 and earlier. The out-of-bounds read is triggered when Exiv2 is used to read the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can trick the victim into running Exiv2 on a crafted image file. The bug is fixed in version v0.27.5.

CVSS 3.1 · 4.7 Medium EPSS 1.1% KEV · Not listed
CVE-2021-37530

transfig: Segfault in the open_stream function in readpics.c

A denial of service vulnerabiity exists in fig2dev through 3.28a due to a segfault in the open_stream function in readpics.c.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
CVE-2021-37529

transfig: Double-free via the free_stream function in readpics.c

A double-free vulnerability exists in fig2dev through 3.28a is affected by: via the free_stream function in readpics.c, which could cause a denial of service (context-dependent).

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
CVE-2021-37149

Request Smuggling - multiple attacks

Improper Input Validation vulnerability in header parsing of Apache Traffic Server allows an attacker to smuggle requests. This issue affects Apache Traffic Server 8.0.0 to 8.1.2 and 9.0.0 to 9.1.0.

CVSS 3.1 · 7.5 High EPSS 2.7% KEV · Not listed
Vendors
CVE-2021-37148

Request Smuggling - transfer encoding validation

Improper input validation vulnerability in header parsing of Apache Traffic Server allows an attacker to smuggle requests. This issue affects Apache Traffic Server 8.0.0 to 8.1.2 and 9.0.0 to 9.0.1.

CVSS 3.1 · 7.5 High EPSS 2.7% KEV · Not listed
Vendors
CVE-2021-37147

Request Smuggling - LF line ending

Improper input validation vulnerability in header parsing of Apache Traffic Server allows an attacker to smuggle requests. This issue affects Apache Traffic Server 8.0.0 to 8.1.2 and 9.0.0 to 9.1.0.

CVSS 3.1 · 7.5 High EPSS 2.5% KEV · Not listed
Vendors
CVE-2021-36773

uBlock Origin before 1.36.2 and nMatrix before 4.4.9 support an arbitrary depth of parameter nesting for strict blocking, which allows crafted web sites to cause a denial of service (unbounded recursion that can trigger memory consumption and a loss of all blocking functionality).

CVSS 3.1 · 7.5 High EPSS 1.3% KEV · Not listed
Vendors
Products
CVE-2021-36740

varnish: HTTP/2 request smuggling attack via a large Content-Length header for a POST request

Varnish Cache, with HTTP/2 enabled, allows request smuggling and VCL authorization bypass via a large Content-Length header for a POST request. This affects Varnish Enterprise 6.0.x before 6.0.8r3, and Varnish Cache 5.x and 6.x before 6.5.2, 6.6.x before 6.6.1, and 6.0 LTS before 6.0.8.

CVSS 3.1 · 6.5 Medium EPSS 1.6% KEV · Not listed
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Products
CVE-2021-36411

An issue has been found in libde265 v1.0.8 due to incorrect access control. A SEGV caused by a READ memory access in function derive_boundaryStrength of deblock.cc has occurred. The vulnerability causes a segmentation fault and application crash, which leads to remote denial of service.

CVSS 3.1 · 5.5 Medium EPSS 1.2% KEV · Not listed
Vendors
CVE-2021-36409

There is an Assertion `scaling_list_pred_matrix_id_delta==1' failed at sps.cc:925 in libde265 v1.0.8 when decoding file, which allows attackers to cause a Denial of Service (DoS) by running the application with a crafted file or possibly have unspecified other impact.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
CVE-2021-36221

golang: net/http/httputil: panic due to racy read of persistConn after handler panic

Go before 1.15.15 and 1.16.x before 1.16.7 has a race condition that can lead to a net/http/httputil ReverseProxy panic upon an ErrAbortHandler abort.

CVSS 3.1 · 5.9 Medium EPSS 3.1% KEV · Not listed
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Products
Debian Linux Fedora Go and 12 more