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CVE-2024-12088

Rsync: --safe-links option bypass leads to path traversal

A flaw was found in rsync. When using the `--safe-links` option, the rsync client fails to properly verify if a symbolic link destination sent from the server contains another symbolic link within it. This results in a path traversal vulnerability, which may lead to arbitrary file write outside the desired directory.

CVSS 3.1 · 6.5 Medium EPSS 4.6% KEV · Not listed
Vendors
Almalinux Archlinux Gentoo and 5 more
Products
Almalinux Arch Linux Linux and 19 more
CVE-2024-12086

Rsync: rsync server leaks arbitrary client files

A flaw was found in rsync. It could allow a server to enumerate the contents of an arbitrary file from the client's machine. This issue occurs when files are being copied from a client to a server. During this process, the rsync server will send checksums of local data to the client to compare with in order to determine what data needs to be sent to the server. By sending specially constructed checksum values for arbitrary files, an attacker may be able to reconstruct the data of those files byte-by-byte based on the responses from the client.

CVSS 3.1 · 6.1 Medium EPSS 1.8% KEV · Not listed
Vendors
Almalinux Archlinux Gentoo and 5 more
Products
Almalinux Arch Linux Linux and 10 more
CVE-2024-12084

Rsync: heap buffer overflow in rsync due to improper checksum length handling

A heap-based buffer overflow flaw was found in the rsync daemon. This issue is due to improper handling of attacker-controlled checksum lengths (s2length) in the code. When MAX_DIGEST_LEN exceeds the fixed SUM_LENGTH (16 bytes), an attacker can write out of bounds in the sum2 buffer.

CVSS 3.1 · 9.8 Critical EPSS 72.5% KEV · Not listed
Vendors
Almalinux Archlinux Gentoo and 5 more
Products
Almalinux Arch Linux Linux and 7 more
CVE-2024-12085

Rsync: info leak via uninitialized stack contents

A flaw was found in rsync which could be triggered when rsync compares file checksums. This flaw allows an attacker to manipulate the checksum length (s2length) to cause a comparison between a checksum and uninitialized memory and leak one byte of uninitialized stack data at a time.

CVSS 3.1 · 7.5 High EPSS 8.6% KEV · Not listed
Vendors
Almalinux Archlinux Gentoo and 5 more
Products
Almalinux Arch Linux Linux and 26 more
CVE-2026-15449

TOCTOU double copyin in illumos dld ioctl handling causes kernel heap corruption

A time-of-check to time-of-use (TOCTOU) flaw in the illumos data-link pseudo-driver (dld) affects handling of the DLDIOC_GETMACPROP and DLDIOC_SETMACPROP ioctls on /dev/dld. drv_ioc_prop_common() in usr/src/uts/common/io/dld/dld_drv.c copies the dld_ioc_macprop_t ioctl header in once to read its pr_valsize field, sizes and allocates a kernel heap buffer from that value, and then copies the full request in a second time from the same unprivileged user address. A concurrent thread can enlarge pr_valsize between the two copyins, so the second copyin and the subsequent property handling write beyond the end of the undersized allocation and corrupt the kernel heap. An unprivileged local user, including one confined to a non-global zone that owns a datalink, can trigger this to panic the system. The resulting kernel heap corruption may be usable for further compromise.

CVSS 4.0 · 5.8 Medium EPSS < 1% KEV · Not listed
Vendors
Illumos Omnios Tritondatacenter
Products
Illumos-gate Omnios Smartos
CVE-2026-15422

SCTP needs to better-check INIT ACK chunk parameters

The illumos SCTP inbound path performs association lookup for INIT ACK chunks without adequately validating the address parameters carried in the chunk. Since this lookup runs during packet classification (i.e. before SCTP integrity checks or IPsec policy are applied) a remote, unauthenticated attacker can send a crafted SCTP INIT ACK packet with malformed address parameters to cause an out-of-bounds access and kernel heap corruption, which may lead to remote code execution. The flaw has existed since 2010 (illumos-gate commit a5407c02), and affects any illumos distribution prior to illumos-gate commit 53a3efde.

CVSS 4.0 · 9.1 Critical EPSS < 1% KEV · Not listed
Vendors
Illumos Omnios Tritondatacenter
Products
Illumos-gate Omnios Smartos
CVE-2024-12087

Rsync: path traversal vulnerability in rsync

A path traversal vulnerability exists in rsync. It stems from behavior enabled by the `--inc-recursive` option, a default-enabled option for many client options and can be enabled by the server even if not explicitly enabled by the client. When using the `--inc-recursive` option, a lack of proper symlink verification coupled with deduplication checks occurring on a per-file-list basis could allow a server to write files outside of the client's intended destination directory. A malicious server could write malicious files to arbitrary locations named after valid directories/paths on the client.

CVSS 3.1 · 6.5 Medium EPSS 2.3% KEV · Not listed
Vendors
Almalinux Archlinux Gentoo and 5 more
Products
Almalinux Arch Linux Linux and 23 more