Suse Manager Proxy Lts 4.3

fs_read_glyphs() in the libXfont2 font-server client (src/fc/fserve.c) copies each glyph's bitmap into a single buffer. Existing checks validates only that the source slice (position, length) lies within the source bitmap buffer. It does not check whether the running destination cursor has exceeded the allocation. A malicious font server can send overlapping source offsets -- for example 1000 glyphs each referencing {position:0, length:64} with nbytes=64. Each individual source range passes the existing validation, but the cumulative writes total 64000 bytes into a 64-byte destination buffer. This is a heap buffer overflow with attacker-controlled content.

Published: 2026-09-10T08:19:55.462Z
Updated: 2026-09-10T18:26:50.408Z

fs_read_glyphs() in the libXfont2 font-server client (src/fc/fserve.c) indexes the per-character encoding[] array using num_chars from the FS_QueryXBitmaps16 reply, but that array was allocated with a size derived from num_extents in the separate FS_QueryXExtents16 reply. The two CARD32 fields are never cross-checked. A malicious or compromised font server can send a small num_extents (e.g. 1) in the extents reply, then a large num_chars (e.g. 100000) in the bitmaps reply. This causes attacker-controlled out-of-bounds heap read and writes.

Published: 2026-09-10T08:15:24.892Z
Updated: 2026-09-10T12:45:33.969Z

In `src/havegecmd.c`, the `socket_handler` function performs a credential check on the abstract UNIX socket (`\0/sys/entropy/haveged`). However, while it detects if the connecting user is not root (`cred.uid != 0`) and prepares a negative acknowledgement (`ASCII_NAK`), it **fails to stop execution**. The code proceeds to the `switch` statement, allowing any local unprivileged user to execute privileged commands such as `MAGIC_CHROOT`.

Published: 2026-05-20T08:56:14.466Z
Updated: 2026-06-05T11:06:34.200Z

A Path Traversal vulnerability in the tftpsync/add and tftpsync/delete scripts allows a remote attacker on an adjacent network to write or delete files on the filesystem with the privileges of the unprivileged wwwrun user. Although the endpoint is unauthenticated, access is restricted to a list of allowed IP addresses.

Published: 2025-10-30T10:31:15.866Z
Updated: 2026-02-26T16:56:50.977Z