All errata/sisyphus/ALT-PU-2026-17431-2
ALT-PU-2026-17431-2

Package update php8.4 in branch sisyphus

Version8.4.26-alt1
Task#435364
Published2026-11-12
Max severityHIGH
Severity:

Closed issues (21)

BDU:2026-18745
LOW3.4

Уязвимость языка программирования PHP, связанная с выходом операции за границы буфера в памяти, позволяющая нарушителю получить доступ к конфиденциальным данным

Published: 2026-11-09Modified: 2026-11-10
CVSS 3.xLOW 3.4
CVSS:3.x/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
CVSS 2.0LOW 1.8
CVSS:2.0/AV:A/AC:H/Au:N/C:P/I:N/A:N
References
BDU:2026-18746
MEDIUM6.5

Уязвимость компонента ext/soap/php_http.c языка программирования PHP, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2026-11-09
CVSS 3.xMEDIUM 6.5
CVSS:3.x/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
CVSS 2.0MEDIUM 6.1
CVSS:2.0/AV:N/AC:H/Au:N/C:N/I:P/A:C
References
BDU:2026-18765
MEDIUM4.3

Уязвимость языка программирования PHP, связанная с целочисленным переполнением, позволяющая нарушителю оказать воздействие на целостность данных

Published: 2026-11-09Modified: 2026-11-10
CVSS 3.xMEDIUM 4.3
CVSS:3.x/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
CVSS 2.0LOW 2.1
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:P/A:N
References
BDU:2026-18774
HIGH7.5

Уязвимость языка программирования PHP, связанная с неконтролируемой рекурсией, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2026-11-09Modified: 2026-11-10
CVSS 3.xHIGH 7.5
CVSS:3.x/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0HIGH 7.8
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:C
References
BDU:2026-18775
MEDIUM5.9

Уязвимость языка программирования PHP, связанная с раскрытием информации, позволяющая нарушителю получить доступ к конфиденциальным данным

Published: 2026-11-09Modified: 2026-11-10
CVSS 3.xMEDIUM 5.9
CVSS:3.x/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0MEDIUM 5.4
CVSS:2.0/AV:N/AC:H/Au:N/C:C/I:N/A:N
References
BDU:2026-18776
MEDIUM6.5

Уязвимость языка программирования PHP, связанная с выходом операции за границы буфера в памяти, позволяющая нарушителю получить доступ к конфиденциальным данным

Published: 2026-11-09
CVSS 3.xMEDIUM 6.5
CVSS:3.x/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0MEDIUM 6.1
CVSS:2.0/AV:A/AC:L/Au:N/C:C/I:N/A:N
References
BDU:2026-18777
MEDIUM6.5

Уязвимость языка программирования PHP, связанная с частичным сравнением с отсутствующими факторами, позволяющая нарушителю получить доступ к конфиденциальным данным

Published: 2026-11-09
CVSS 3.xMEDIUM 6.5
CVSS:3.x/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0MEDIUM 6.1
CVSS:2.0/AV:A/AC:L/Au:N/C:C/I:N/A:N
References
BDU:2026-18778
MEDIUM4.3

Уязвимость языка программирования PHP, связанная с отсутствием проверки хостовых данных сертификата, позволяющая нарушителю получить доступ к конфиденциальным данным

Published: 2026-11-09Modified: 2026-11-10
CVSS 3.xMEDIUM 4.3
CVSS:3.x/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0LOW 3.3
CVSS:2.0/AV:A/AC:L/Au:N/C:P/I:N/A:N
References
BDU:2026-18779
MEDIUM5.9

Уязвимость языка программирования PHP, связанная с выходом операции за границы буфера в памяти, позволяющая нарушителю получить доступ к конфиденциальным данным

Published: 2026-11-09Modified: 2026-11-10
CVSS 3.xMEDIUM 5.9
CVSS:3.x/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0MEDIUM 5.4
CVSS:2.0/AV:N/AC:H/Au:N/C:C/I:N/A:N
References
BDU:2026-18780
MEDIUM5.8

Уязвимость языка программирования PHP, связанная с чтением за допустимыми границами буфера данных, позволяющая нарушителю получить доступ к конфиденциальным данным

Published: 2026-11-09Modified: 2026-11-10
CVSS 3.xMEDIUM 5.8
CVSS:3.x/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:P/I:N/A:N
References
CVE-2025-1218
MEDIUM5.9

The mysqlnd wire protocol parser reads fields out of server packets before checking that the packet still holds enough bytes for them. A malicious or compromised MySQL server can send a truncated packet and make the client read past the end of the packet buffer, which is undefined behaviour and can crash the process.

Published: 2026-09-25Modified: 2026-10-23
CVSS 3.xMEDIUM 5.9
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2025-14181
MEDIUM6.5

The SOAP HTTP client guards its response buffer growth with a check that relies on signed integer overflow, which is undefined behaviour and is not guaranteed to trigger. When the check is optimised away, a malicious SOAP server can make the client allocate a buffer far smaller than the data it then writes into it, producing a heap buffer overflow.

Published: 2026-09-25Modified: 2026-10-23
CVSS 3.xMEDIUM 6.5
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
References
CVE-2026-17545
MEDIUM6.9

On Windows, PHP's filesystem and stream APIs do not reject reserved device names such as CON, PRN, AUX, NUL, COM1 to COM9, LPT1 to LPT9, CONIN$ and CONOUT$ when they appear as a component of a path. An attacker-controlled filename therefore reaches CreateFileW() and opens a device instead of the regular file the application expected, which can block or hang the request and exhaust worker processes.

Published: 2026-09-25Modified: 2026-10-23
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 4.0
CVSS:4.0/CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
References
CVE-2026-6103
LOW3.3

phar_tar_number() parses the octal size field of a TAR header into a uint32_t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlled file content as the next TAR header, which lets a crafted archive inject entries that PharData reports and extracts as if they were genuine.

Published: 2026-09-25Modified: 2026-10-23
CVSS 3.xLOW 3.3
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
References
CVE-2026-91765
HIGH7.5

cleanup_xml_node() in the SOAP XML parser recurses once per XML nesting level with no depth limit. An unauthenticated attacker can post a SOAP request containing tens of thousands of nested elements to any SoapServer endpoint, exhaust the stack and crash the process. The same unbounded recursion exists in the SOAP value decoder and in the WSDL node search helper.

Published: 2026-09-25Modified: 2026-10-23
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2026-91766
MEDIUM5.9

When the http:// stream wrapper follows a redirect it forwards the user-supplied Authorization, Cookie and Proxy-Authorization headers unchanged, even when the redirect target is a different host, a different port, or a downgrade from HTTPS to HTTP. A server that can steer a redirect therefore receives credentials that were only meant for the original origin. This is the same class of issue that libcurl fixed in 7.58.0 ( CVE-2018-1000007 https://github.com/advisories/GHSA-g7x2-hrfp-pv5f ).

Published: 2026-09-25Modified: 2026-10-23
CVSS 3.xMEDIUM 5.9
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
References
CVE-2026-91767
MEDIUM6.5

php_openssl_matches_wildcard_name() in ext/openssl/xp_ssl.c underflows the length argument passed to memchr() when a TLS server certificate presents a wildcard name whose literal characters are together longer than the hostname being verified. A malicious server presenting such a certificate makes the PHP client read up to SIZE_MAX bytes past the end of a heap allocation. The path is reachable from any default client stream, because verify_peer_name is enabled by default.

Published: 2026-09-25Modified: 2026-10-27
CVSS 3.xMEDIUM 6.5
CVSS:3.x/CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2026-91768
MEDIUM6.5

The IPv6 branch of the FastCGI client access check compares only the first 12 bytes of a 16-byte IPv6 address, so listen.allowed_clients matches on a /96 prefix instead of the exact address. An attacker who can source an address sharing the first 96 bits with an allowed one passes the check and reaches the FastCGI endpoint.

Published: 2026-09-25Modified: 2026-10-27
CVSS 3.xMEDIUM 6.5
CVSS:3.x/CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
References
CVE-2026-91769
MEDIUM4.3

PHP's OpenSSL stream peer verification checks the certificate's subjectAltName entries first and, whenever no entry matches, falls back to the Common Name. RFC 6125 requires the CN to be ignored once the certificate presents any service identity, so a certificate carrying a non-matching DNS SAN was still accepted when its CN matched the requested peer_name. A certificate trusted by the client for one name can therefore be used to impersonate another.

Published: 2026-09-25Modified: 2026-10-23
CVSS 3.xMEDIUM 4.3
CVSS:3.x/CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
References
CVE-2026-92842
MEDIUM5.9

The convert.base64-encode, convert.quoted-printable-encode and convert.quoted-printable-decode stream filters accept a line-break-chars option whose length is tracked separately from the string itself. The filter constructors duplicate the value with pestrdup(), which stops at the first NUL byte, while keeping the original length. When the filter later emits a line break it copies the recorded length out of the truncated allocation, reading past its end and placing adjacent heap bytes into the filter output.

Published: 2026-09-25Modified: 2026-10-27
CVSS 3.xMEDIUM 5.9
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
References
CVE-2026-93682
MEDIUM5.8

When the HTTP stream wrapper follows a redirect and the response carries a Location header with an empty value, the redirect code reads one byte past the end of the heap buffer holding the location. The value of that out-of-bounds byte decides which redirect target is built, so a malicious server controls whether the client is sent to the host root or to the current directory.

Published: 2026-09-25Modified: 2026-10-23
CVSS 3.xMEDIUM 5.8
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
References