Operating systems stack vulnerabilities · Page 58

Starman versions before 0.4019 for Perl allow memory exhaustion via unbounded buffering of chunked request bodies

Starman versions before 0.4019 for Perl allow memory exhaustion via unbounded buffering of chunked request bodies. The chunked body decoder keeps each chunk in memory until the whole chunk and its CRLF have arrived, and sets no limit on the length of a chunk-size line. A client that declares a huge chunk size and streams data, or sends a chunk-size line that never ends, grows the buffer for as long as it keeps sending. A remote attacker can exhaust worker memory with a single connection.

• Update to 0.4019-1

Starman versions before 0.4019 for Perl send response bodies for HEAD requests, desynchronizing responses on keep-alive connections

Starman versions before 0.4019 for Perl send response bodies for HEAD requests, desynchronizing responses on keep-alive connections. For a HEAD request Starman omits chunked framing but still writes the body returned by the application, on both the array and streaming response paths. Responses with a 1xx, 204 or 304 status also carry the body. On a keep-alive or pipelined connection the client reads those bytes as the start of the next response. A front-end proxy that reuses upstream connections may then pair responses with the wrong requests.

• Update to 0.4019-1

Starman versions before 0.4019 for Perl allow CPU exhaustion via quadratic regex backtracking when parsing chunked request bodies

Starman versions before 0.4019 for Perl allow CPU exhaustion via quadratic regex backtracking when parsing chunked request bodies. Starman decodes chunked request bodies before calling the application, matching each chunk-size line with `s/^(([0-9a-fA-F]+).*\015\012)//`. A line of hex digits followed by a bare LF and then CRLF never matches, because `.` does not match LF, and each failed attempt backtracks in time quadratic in the length of the hex run. Nothing limits the length of the line. A remote attacker can exhaust worker CPU by sending such requests to any route.

• Update to 0.4019-1

Starman versions before 0.4019 for Perl allow a stalled request body to hold a worker indefinitely, as read_timeout covers only the headers

Starman versions before 0.4019 for Perl allow a stalled request body to hold a worker indefinitely, as read_timeout covers only the headers. Content-Length and chunked request bodies are read with blocking reads and no deadline. A client that sends complete headers and then stalls or trickles the body keeps the worker waiting until it disconnects. A remote attacker can take every worker with a few such connections, five with the default worker count, so the server stops answering requests. Version 0.4019 applies read_timeout to each wait for body data and adds a body_timeout limit, 300 seconds by default, on the total time to read a body.

• Update to 0.4019-1

Security update for cosign

This update for cosign rebuilds it against the current go security release.

• Update to 3.1.3-150400.3.59.1

dbcli mycli Whitelist source.py source_special_command_is_safe os command injection

A weakness has been identified in dbcli mycli up to 2.29.4/2.30.1. The impacted element is the function source_special_command_is_safe of the file mycli/packages/special/source.py of the component Whitelist. Executing a manipulation can lead to os command injection. It is possible to launch the attack on the local host. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Rclone before v1.75.2 B2 Credential Leak on Redirect via --b2-download-url

Rclone before v1.75.2 contains a credential exposure vulnerability in the b2 backend that leaks the live account Authorization token and SSE-C keys on HTTP redirects from --b2-download-url hosts. Attackers can observe a same-host HTTPS-to-HTTP downgrade redirect to capture the cleartext B2 token, or receive cross-host redirects disclosing SSE-C customer encryption keys.

• Update to 1.75.2

Rclone before 1.75.2 Path Traversal via translateLink .rclonelink Suffix Trim

Rclone before 1.75.2 contains a path traversal vulnerability in the local backend's translateLink function, which trims the .rclonelink suffix from a path after the containment check, so a name can resolve outside the destination root. Attackers can plant a directory named ...rclonelink in a source tree synced with --links and --metadata to change ownership, timestamps, and xattrs of the destination's parent directory.

• Update to 1.75.2

Rclone 1.52.0 before 1.75.2 CSRF via pCloud OAuth Callback

Rclone from 1.52.0 before 1.75.2 contains a cross-site request forgery vulnerability in the pCloud backend's localhost OAuth callback, which disables the state check and trusts the hostname parameter. Malicious web pages can send a stateless request to port 53682 during authorization, planting attacker tokens and API hosts so later transfers reach the attacker.

• Update to 1.75.2

Rclone 1.64.0 before 1.75.2 serve webdav Authentication Bypass via OPTIONS Requests

Rclone from 1.64.0 before 1.75.2 contains an authentication bypass vulnerability in serve webdav that lets unauthenticated attackers skip authentication by sending OPTIONS requests. Attackers can probe arbitrary paths and compare Allow header values to determine whether files or collections exist, enabling namespace enumeration.

• Update to 1.75.2

rclone from 1.37 before 1.74.2 SSRF via --rc-serve scheme-relative remote roots

rclone from 1.37 before 1.74.2 contains a server-side request forgery vulnerability that allows unauthenticated attackers to redirect http and netstorage backend requests by supplying a double-slash root on an existing named remote via --rc-serve. Attackers can make HEAD/GET requests to attacker-chosen hosts to read responses, capture configured custom headers, or obtain valid NetStorage request signatures.

• Update to 1.74.2

Rclone before 1.75.2 Path Traversal via serve webdav MKCOL

Rclone before 1.75.2 contains a path traversal vulnerability in serve webdav that allows unauthenticated attackers to write above the served root by sending an unvalidated '..' path component. Attackers can send MKCOL /.. to plant a VFS node, then PUT, MOVE, COPY, or MKCOL to create, overwrite, or delete files belonging to other tenants.

• Update to 1.75.2

rclone v1.56.0 before v1.75.2 WebDAV Credential Header Leak on Redirect

rclone from v1.56.0 before v1.75.2 contains an information disclosure vulnerability in the WebDAV backend that forwards operator-configured custom credential headers to different hosts on HTTP 3xx redirects. Attackers who control or influence a cross-host redirect can capture headers such as X-Auth-Token set via --webdav-headers and replay them against the original WebDAV service.

• Update to 1.75.2

rclone 1.55.0 before 1.75.2 selfupdate Signature Verification Bypass via SHA256SUMS

rclone from 1.55.0 before 1.75.2 contains a signature verification bypass in stable selfupdate that trusts checksums from unsigned bytes preceding the PGP-clearsigned SHA256SUMS block. Attackers controlling the release distribution path can prepend an unsigned checksum line matching a malicious archive, causing selfupdate to install an attacker-controlled rclone executable.

• Update to 1.75.2

rclone serve s3 1.75.0 before 1.75.2 Memory Limit Bypass via Multipart Overflow

rclone serve s3 versions 1.75.0 before 1.75.2 contain an integer overflow vulnerability in multipart reorder-memory accounting that bypasses the configured buffer limit. Attackers can open two concurrent current-part PUT requests declaring huge lengths to wrap the signed int64 counter and retain out-of-order parts in memory, exhausting the host.

• Update to 1.75.2

Rclone v1.68.0 before v1.75.2 Authorization Bypass in serve s3 Multipart Uploads

Rclone from v1.68.0 before v1.75.2 contains an authorization bypass vulnerability in serve s3 --auth-proxy that allows authenticated tenants to manipulate other tenants' multipart uploads by referencing their upload IDs. Attackers who learn a victim's bucket, object, and upload ID can inject parts, complete, or abort in-flight uploads and view upload and object metadata across tenants.

• Update to 1.75.2

ImageMagick before 6.9.13-58 and 7.x before 7.1.2-33 Heap Buffer Overflow via X11 Animate

ImageMagick before 6.9.13-58 and 7.x before 7.1.2-33 contains a heap-based buffer overflow in the X11 animate operation when processing crafted images. Attackers can supply a malicious image that, when a user runs an X11 animate operation on it, overwrites heap memory and can crash the application.

• Update to 6.9.13-58
• Update to 7.1.2-33
• Update to 8:7.1.2.33+dfsg1-1

ImageMagick before 6.9.13-58 and 7.x before 7.1.2-33 Memory Leak via -cdl Option

ImageMagick before 6.9.13-58 and 7.x before 7.1.2-33 contains a memory leak in the handling of the -cdl (color decision list) option, where allocated memory is not cleaned up after use. Attackers can supply input that causes the -cdl option to be processed, repeatedly leaking memory and degrading availability through resource exhaustion.

• Update to 6.9.13-58
• Update to 7.1.2-33
• Update to 8:7.1.2.33+dfsg1-1

ImageMagick before 7.1.2-33 Memory Leak in magick compare

ImageMagick before 7.1.2-33 contains a memory leak vulnerability in the magick compare command caused by missing cleanup when an operation fails. Attackers can supply inputs that trigger repeated failed compare operations to exhaust memory and cause denial of service.

• Update to 7.1.2-33
• Update to 8:7.1.2.33+dfsg1-1

ImageMagick before 7.1.2-33 Memory Leak in PerlMagick Property Reading

ImageMagick before 7.1.2-33 contains a memory leak vulnerability in PerlMagick that fails to free values returned when reading image properties. Attackers can repeatedly trigger property reads through five affected PerlMagick code locations to exhaust memory and cause denial of service.

• Update to 7.1.2-33
• Update to 8:7.1.2.33+dfsg1-1