Debian Rsync vulnerabilities

CVE-2025-10158 [MEDIUM] CVE-2025-10158: rsync - A malicious client acting as the receiver of an rsync file transfer can trigger ... A malicious client acting as the receiver of an rsync file transfer can trigger an out of bounds read of a heap based buffer, via a negative array index. The malicious rsync client requires at least read access to the remote rsync module in order to trigger the issue. Scope: local bookworm: resolved (fixed in 3.2.7-1+deb12u4) bullseye: open forky: resolved (fixed in

CVE-2024-12084 [CRITICAL] CVE-2024-12084: rsync - A heap-based buffer overflow flaw was found in the rsync daemon. This issue is d... 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. Scope: local bookworm: resolved (fixed in 3.2.7-1+deb12u1) bullseye: resolved for

CVE-2024-12085 [HIGH] CVE-2024-12085: rsync - A flaw was found in rsync which could be triggered when rsync compares file chec... 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. Scope: local bookworm: resolved (fixed in 3.2.7-1+deb12u1) bullseye: resolved (fixed i

CVE-2024-12747 [MEDIUM] CVE-2024-12747: rsync - A flaw was found in rsync. This vulnerability arises from a race condition durin... A flaw was found in rsync. This vulnerability arises from a race condition during rsync's handling of symbolic links. Rsync's default behavior when encountering symbolic links is to skip them. If an attacker replaced a regular file with a symbolic link at the right time, it was possible to bypass the default behavior and traverse symbolic links. Depending on the pri

CVE-2024-12087 [MEDIUM] CVE-2024-12087: rsync - A path traversal vulnerability exists in rsync. It stems from behavior enabled b... 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

CVE-2024-12086 [MEDIUM] CVE-2024-12086: rsync - A flaw was found in rsync. It could allow a server to enumerate the contents of ... 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 s

CVE-2024-12088 [MEDIUM] CVE-2024-12088: rsync - A flaw was found in rsync. When using the `--safe-links` option, the rsync clien... 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. Scope: local bookworm: resolved (fixed in 3.2.7-1

CVE-2022-29154 [HIGH] CVE-2022-29154: rsync - An issue was discovered in rsync before 3.2.5 that allows malicious remote serve... An issue was discovered in rsync before 3.2.5 that allows malicious remote servers to write arbitrary files inside the directories of connecting peers. The server chooses which files/directories are sent to the client. However, the rsync client performs insufficient validation of file names. A malicious rsync server (or Man-in-The-Middle attacker) can overwrite arbitr

CVE-2020-14387 [HIGH] CVE-2020-14387: rsync - A flaw was found in rsync in versions since 3.2.0pre1. Rsync improperly validate... A flaw was found in rsync in versions since 3.2.0pre1. Rsync improperly validates certificate with host mismatch vulnerability. A remote, unauthenticated attacker could exploit the flaw by performing a man-in-the-middle attack using a valid certificate for another hostname which could compromise confidentiality and integrity of data transmitted using rsync-ssl. The hi

CVE-2018-5764 [HIGH] CVE-2018-5764: rsync - The parse_arguments function in options.c in rsyncd in rsync before 3.1.3 does n... The parse_arguments function in options.c in rsyncd in rsync before 3.1.3 does not prevent multiple --protect-args uses, which allows remote attackers to bypass an argument-sanitization protection mechanism. Scope: local bookworm: resolved (fixed in 3.1.2-2.2) bullseye: resolved (fixed in 3.1.2-2.2) forky: resolved (fixed in 3.1.2-2.2) sid: resolved (fixed in 3.1.2-2.2)

CVE-2017-17434 [CRITICAL] CVE-2017-17434: rsync - The daemon in rsync 3.1.2, and 3.1.3-development before 2017-12-03, does not che... The daemon in rsync 3.1.2, and 3.1.3-development before 2017-12-03, does not check for fnamecmp filenames in the daemon_filter_list data structure (in the recv_files function in receiver.c) and also does not apply the sanitize_paths protection mechanism to pathnames found in "xname follows" strings (in the read_ndx_and_attrs function in rsync.c), which allows remo

CVE-2017-16548 [CRITICAL] CVE-2017-16548: rsync - The receive_xattr function in xattrs.c in rsync 3.1.2 and 3.1.3-development does... The receive_xattr function in xattrs.c in rsync 3.1.2 and 3.1.3-development does not check for a trailing '\0' character in an xattr name, which allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact by sending crafted data to the daemon. Scope: local bookworm: resolved (fi

CVE-2017-17433 [LOW] CVE-2017-17433: rsync - The recv_files function in receiver.c in the daemon in rsync 3.1.2, and 3.1.3-de... The recv_files function in receiver.c in the daemon in rsync 3.1.2, and 3.1.3-development before 2017-12-03, proceeds with certain file metadata updates before checking for a filename in the daemon_filter_list data structure, which allows remote attackers to bypass intended access restrictions. Scope: local bookworm: resolved (fixed in 3.1.2-2.1) bullseye: resolved (fi

CVE-2017-15994 [CRITICAL] CVE-2017-15994: rsync - rsync 3.1.3-development before 2017-10-24 mishandles archaic checksums, which ma... rsync 3.1.3-development before 2017-10-24 mishandles archaic checksums, which makes it easier for remote attackers to bypass intended access restrictions. NOTE: the rsync development branch has significant use beyond the rsync developers, e.g., the code has been copied for use in various GitHub projects. Scope: local bookworm: resolved bullseye: resolved forky: re

CVE-2016-9843 [CRITICAL] CVE-2016-9843: rsync - The crc32_big function in crc32.c in zlib 1.2.8 might allow context-dependent at... The crc32_big function in crc32.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving big-endian CRC calculation. Scope: local bookworm: resolved (fixed in 3.1.3-6) bullseye: resolved (fixed in 3.1.3-6) forky: resolved (fixed in 3.1.3-6) sid: resolved (fixed in 3.1.3-6) trixie: resolved (fixed in 3.1.3-6)

CVE-2016-9841 [CRITICAL] CVE-2016-9841: rsync - inffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecif... inffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic. Scope: local bookworm: resolved (fixed in 3.1.3-6) bullseye: resolved (fixed in 3.1.3-6) forky: resolved (fixed in 3.1.3-6) sid: resolved (fixed in 3.1.3-6) trixie: resolved (fixed in 3.1.3-6)

CVE-2016-9842 [HIGH] CVE-2016-9842: rsync - The inflateMark function in inflate.c in zlib 1.2.8 might allow context-dependen... The inflateMark function in inflate.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving left shifts of negative integers. Scope: local bookworm: resolved (fixed in 3.1.3-6) bullseye: resolved (fixed in 3.1.3-6) forky: resolved (fixed in 3.1.3-6) sid: resolved (fixed in 3.1.3-6) trixie: resolved (fixed in 3.1.3-6)

CVE-2016-9840 [HIGH] CVE-2016-9840: rsync - inftrees.c in zlib 1.2.8 might allow context-dependent attackers to have unspeci... inftrees.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic. Scope: local bookworm: resolved (fixed in 3.1.3-6) bullseye: resolved (fixed in 3.1.3-6) forky: resolved (fixed in 3.1.3-6) sid: resolved (fixed in 3.1.3-6) trixie: resolved (fixed in 3.1.3-6)

CVE-2014-2855 [HIGH] CVE-2014-2855: rsync - The check_secret function in authenticate.c in rsync 3.1.0 and earlier allows re... The check_secret function in authenticate.c in rsync 3.1.0 and earlier allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a user name which does not exist in the secrets file. Scope: local bookworm: resolved (fixed in 3.1.0-3) bullseye: resolved (fixed in 3.1.0-3) forky: resolved (fixed in 3.1.0-3) sid: resolved (fixed in 3.1.0-

CVE-2014-9512 [MEDIUM] CVE-2014-9512: rsync - rsync 3.1.1 allows remote attackers to write to arbitrary files via a symlink at... rsync 3.1.1 allows remote attackers to write to arbitrary files via a symlink attack on a file in the synchronization path. Scope: local bookworm: resolved (fixed in 3.1.1-3) bullseye: resolved (fixed in 3.1.1-3) forky: resolved (fixed in 3.1.1-3) sid: resolved (fixed in 3.1.1-3) trixie: resolved (fixed in 3.1.1-3)