Aggregator

USN-8733-1 fixed vulnerabilities in Gzip. This update provides the corresponding fix for Gzip on Ubuntu 14.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. Original advisory details: Michał Majchrowicz and Marcin Wyczechowski discovered that Gzip's gzexe utility created temporary files in an insecure manner when mktemp was unavailable. A local attacker could possibly use this issue to overwrite arbitrary files. (CVE-2026-41991) Elias Hasas, Michał Majchrowicz and Marcin Wyczechowski discovered that Gzip incorrectly handled certain compressed files. An attacker could possibly use this issue to obtain sensitive information or cause Gzip to crash, resulting in a denial of service. (CVE-2026-41992)

php-8.4.26-1.fc43

Fedora Security Advisories

1 week ago

FEDORA-2026-d5e4829deb Packages in this update:

php-8.4.26-1.fc43

Update description:

PHP version 8.4.26 (24 Sep 2026)

BCMath:

Fixed out-of-bounds read in bc_is_zero_for_scale() when scale exceeds n_scale. (Ilia Alshanetsky)

Core:

Fixed out-of-bounds reads during automatic UTF-16/32 encoding detection. (Yudai Takada)
Fixed bug GH-15375 (Nested "yield from" skips items after a valid() or next() call on the inner generator). (iliaal)
Fixed bug GH-23232 (lone namespace separator asks the autoloader for an empty class name). (spawnia)
Fixed bug GH-23301 (Nested "yield from" yields a value twice when the middle generator delegates again). (Lazizbek Ergashev)

CLI:

Fixed bug GH-23425 (sapi_cli_server_send_headers() does not check the return value of php_cli_server_client_send_through()). (Lazizbek Ergashev)

DOM:

Fixed NamedNodeMap::getNamedItemNS() with an empty URI not matching the null namespace in spec-following mode. (Ilia Alshanetsky)
Fixed a use-after-free when cloning a DOMNameSpaceNode after DOMDocument::xinclude(). (iliaal)
Fixed bug GH-23331 (UAF when node_list_unlink() skips attribute children that still have a live wrapper). (iliaal)
Fixed a use-after-free when Dom\Element::setAttributeNS() replaces the value of an attribute whose child still has a live wrapper. (iliaal)

GD:

Fixed imageaffinematrixget() and imageaffinematrixconcat() reporting the wrong argument in error messages. (Weilin Du)
Fixed bug GH-23457 (imagebmp() is extremely slow when writing to a file). (Lazizbek Ergashev)

FPM:

Fixed bug GH-19320 (FPM UID and GID overflow). (Pratik Bhujel)
Fixed GHSA-62xp-839h-2637 (IPv6 ACL bypass in FastCGI listen.allowed_clients due to partial address comparison). (CVE-2026-91768) (Alexandre Daubois)

Hash:

Fixed a buffer overflow in hash_pbkdf2() with a large output length. (Lazizbek Ergashev)

Intl:

Fixed grapheme_strpos() and grapheme_strrpos() with an empty needle returning UTF-16 offsets instead of grapheme offsets. (Ilia Alshanetsky)
Fixed a memory leak when dumping IntlCalendar instances. (Ilia Alshanetsky)
Fixed a memory leak when iterating IntlBreakIterator::getPartsIterator() results. (iliaal)
Fixed a double-free when IntlGregorianCalendar construction fails after the ICU constructor adopts the TimeZone. (iliaal)
Fixed bug GH-23094 (NumberFormatter parsing offsets use UTF-16 positions for UTF-8 strings). (ColumbusLabs)
Fixed Locale::parseLocale() reading past a trailing '-' or '_'. (iliaal, Xuyang Zhang)
Fixed grapheme_str_split() treating UBRK_DONE as a byte index. (iliaal)
Fixed a leak in Locale::getKeywords() when a keyword value cannot be read. (iliaal)
Fixed a use-after-free when IntlRuleBasedBreakIterator is constructed from compiled rules. (iliaal)

MBString:

Fixed mb_ereg_replace() emitting a NUL or out-of-bounds bytes in the replacement when a \k<name> backref has no closing delimiter. (Ilia Alshanetsky)

MySQLnd:

Fixed GHSA-r6x9-5r99-36j7 (Various packet overreads in mysqlnd wire protocol). (CVE-2025-1218) (Jakub Zelenka, Nora Dossche)

ODBC:

Fixed odbc_field_len(), odbc_field_scale() and odbc_field_type() returning uninitialized memory when SQLColAttribute fails. (Ilia Alshanetsky)

Opcache:

Fixed a crash when the huge page SHM remap discarded mappings outside the reserved address range. (Piotr Hałas)
Fixed opcache.protect_memory race under ZTS. (realFlowControl)
Fixed bug GH-23288 (Crash on restart when opcache.interned_strings_buffer is overridden in an individual FPM pool). (David Carlier)
Fixed a tracing JIT crash when compiling a side trace for a method of a class that could not be stored in the inheritance cache. (GH-21710) (Arnaud, iliaal)

OpenSSL:

Fixed GHSA-vvx9-73fr-5jjx (TLS hostname verification falls back to CN after SAN mismatch). (CVE-2026-91769) (Jakub Zelenka)
Fixed GHSA-xr7j-rvgx-xq5p (Heap buffer overflow in php_openssl_matches_wildcard_name() on crafted server certificate wildcard CN). (CVE-2026-91767) (Jakub Zelenka)

PDO:

Fixed a leak when a persistent connection failed a liveness check with no other live PDO handle. (iliaal)

PDO_ODBC:

Fixed bug GH-23444 (ODBC_ATTR_ASSUME_UTF8 corrupts Unicode data outside Windows). (Calvin Buckley, Lazizbek Ergashev)

PDO_PGSQL:

Fixed PDO::CURSOR_SCROLL statements closing a cursor that does not exist. (KentarouTakeda)

PDO Sqlite:

Fixed bug GH-20214 (PDO::FETCH_DEFAULT unexpected behavior with PDOStatement::setFetchMode). (SakiTakamachi)

Phar:

Fixed bug GH-23418 (Use-after-free when looking up mounted directories). (Weilin Du)
Fixed bug GH-23477 (Memory leak on duplicate native Phar manifest entries). (Weilin Du)
Fixed GHSA-j3wh-g957-2m85 (Integer overflow in phar_tar_number() allowing TAR archive entry injection). (CVE-2026-6103) (Jakub Zelenka)

SNMP:

Fixed bug GH-23453 (SNMP::setSecurity() frees a non-malloced address with a context engine ID longer than 32 bytes). (Lazizbek Ergashev)

SOAP:

Fixed bug GH-23447 (Segfault when a class passed to SoapServer::setClass() fails to initialize). (Lazizbek Ergashev)
Fixed WSDL cache corruption when a soap:header defines headerfaults. (Ilia Alshanetsky)
Fixed stack overflow when parsing a WSDL with self-referential schema groups or attributeGroups. (Ilia Alshanetsky)
Fixed GHSA-rgrp-mwpx-f6rm (Unbounded recursion in server-side cleanup_xml_node()). (CVE-2026-91765) (Alexandre Daubois)
Fixed GHSA-cj93-vc83-wgqv (Integer overflow to buffer overflow in SOAP HTTP parsing). (CVE-2025-14181) (Nora Dossche, Jakub Zelenka)

Standard:

Fixed a segfault when a stream filter callback unsets StreamBucket::$data before re-attaching the bucket. (iliaal)
Fixed GHSA-7875-c8px-7q5f (Out-of-bounds read in the HTTP stream wrapper when following a redirect with an empty Location header). (CVE-2026-93682) (Ilia Alshanetsky, Jordi Kroon)
Fixed a memory leak in array_merge_recursive() when the recursive merge of an object converted to an array fails. (David Carlier)
Fixed read buffer compaction in php_stream_filter_flush(). (crystarm)
Fixed bug GH-22410 (Incorrect float behavior with large numbers). (arshidkv12)
Fixed GH-23338 (fsockopen()/pfsockopen() ValueError reported wrong argument number for $timeout). (lacatoire)
Fixed bug GH-23576 (Next index for array returned from array_keys() is wrong). (Lazizbek Ergashev)
Fixed GHSA-88hq-2827-7pg6 (Out-of-bounds read in convert. stream filters when line-break-chars contains NUL). (CVE-2026-92842*) (geeknik)
Fixed GHSA-fpwc-w8rq-cr92 (Cross-origin credential leak in HTTP stream wrapper redirects). (CVE-2026-91766) (Alexandre Daubois, Jakub Zelenka)

SimpleXML:

Fixed writing to a dimension of the object returned by attributes() not creating the attribute. (Ilia Alshanetsky)
Fixed child elements of the element returned by SimpleXMLElement::addChild() not being accessible by property name when namespaces are involved. (Ilia Alshanetsky)

SAPI:

Fixed fuzzer targets failing to build in isolation. (Mrmaxmeier)
Fixed returns uninitialized value on LiteSpeed lsapi SAPI (Go Kudo)

php-8.5.11-1.fc45