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CVE-2022-25236

expat: Namespace-separator characters in "xmlns[:prefix]" attribute values can lead to arbitrary code execution

xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namespace URIs.

CVSS 3.1 · 9.8 Critical EPSS 35.3% KEV · Not listed
Vendors
Debian Libexpat Project Oracle and 2 more
Products
Debian Linux Libexpat Http Server and 8 more
CVE-2022-25235

expat: Malformed 2- and 3-byte UTF-8 sequences can lead to arbitrary code execution

xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a UTF-8 character is valid in a certain context.

CVSS 3.1 · 9.8 Critical EPSS 5.0% KEV · Not listed
Vendors
Debian Fedoraproject Libexpat Project and 3 more
Products
Debian Linux Fedora Libexpat and 9 more
CVE-2021-45960

expat: Large number of prefixed XML attributes on a single tag can crash libexpat

In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory).

CVSS 3.1 · 8.8 High EPSS 4.7% KEV · Not listed
Vendors
Debian Libexpat Project Netapp and 3 more
Products
Debian Linux Libexpat Active Iq Unified Manager and 7 more
CVE-2021-22925

curl: Incorrect fix for CVE-2021-22898 TELNET stack contents disclosure

curl supports the `-t` command line option, known as `CURLOPT_TELNETOPTIONS`in libcurl. This rarely used option is used to send variable=content pairs toTELNET servers.Due to flaw in the option parser for sending `NEW_ENV` variables, libcurlcould be made to pass on uninitialized data from a stack based buffer to theserver. Therefore potentially revealing sensitive internal information to theserver using a clear-text network protocol.This could happen because curl did not call and use sscanf() correctly whenparsing the string provided by the application.

CVSS 3.1 · 5.3 Medium EPSS 5.4% KEV · Not listed
Vendors
Apple Fedoraproject Haxx and 5 more
Products
Mac Os X Macos Fedora and 25 more
CVE-2021-22924

curl: Bad connection reuse due to flawed path name checks

libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse, if one of them matches the setup.Due to errors in the logic, the config matching function did not take 'issuercert' into account and it compared the involved paths *case insensitively*,which could lead to libcurl reusing wrong connections.File paths are, or can be, case sensitive on many systems but not all, and caneven vary depending on used file systems.The comparison also didn't include the 'issuer cert' which a transfer can setto qualify how to verify the server certificate.

CVSS 3.1 · 3.7 Low EPSS 6.3% KEV · Not listed
Vendors
Debian Fedoraproject Haxx and 5 more
Products
Debian Linux Fedora Libcurl and 52 more