mstolfp in libntp/mstolfp.c in NTP 4.2.8p15 has an out-of-bounds write when adding a decimal point. An adversary may be able to attack a client ntpq process, but cannot attack ntpd.

mstolfp in libntp/mstolfp.c in NTP 4.2.8p15 has an out-of-bounds write when adding a decimal point.

mstolfp in libntp/mstolfp.c in NTP 4.2.8p15 has an out-of-bounds write when adding a decimal point. An adversary may be able to attack a client ntpq process, but cannot attack ntpd. mstolfp in libntp/mstolfp.c in NTP 4.2.8p15 has an out-of-bounds write when copying the trailing number. An adversary may be able to attack a client ntpq process, but cannot attack ntpd. mstolfp in libntp/mstolfp.c in NTP 4.2.8p15 has an out-of-bounds write when adding a '\0' character. An adversary may be able to attack a client ntpq process, but cannot attack ntpd.

Affected: openEuler:20.03-LTS-SP1: ntp, openEuler:20.03-LTS-SP3: ntp, openEuler:22.03-LTS: ntp, openEuler:22.03-LTS-SP1: ntp

NTP is a protocol designed to synchronize the clocks of computers over a network, NTP version 4, a significant revision of the previous NTP standard, is the current development version. It is formalized by RFCs released by the IETF. Security Fix(es): mstolfp in libntp/mstolfp.c in NTP 4.2.8p15 has an out-of-bounds write in the cp<cpdec while loop. An adversary may be able to attack a client ntpq process, but cannot attack ntpd.(CVE-2023-26551) mstolfp in libntp/mstolfp.c in NTP 4.2.8p15 has an out-of-bounds write when adding a '\0' character. An adversary may be able to attack a client ntpq process, but cannot attack ntpd.(CVE-2023-26554) mstolfp in libntp/mstolfp.c in NTP 4.2.8p15 has an out-of-bounds write when copying the trailing number. An adversary may be able to attack a client ntpq process, but cannot attack ntpd.(CVE-2023-26553) mstolfp in libntp/mstolfp.c in NTP 4.2.8p15 has an out-of-bounds write when adding a decimal point. An adversary may be able to attack a client ntpq process, but cannot attack ntpd.(CVE-2023-26552)

Security update for ntp

Affected: Ubuntu:Pro:14.04:LTS: ntp, Ubuntu:16.04:LTS: ntp, Ubuntu:Pro:18.04:LTS: ntp, Ubuntu:Pro:20.04:LTS: ntp, Ubuntu:22.04:LTS: ntp

mstolfp in libntp/mstolfp.c in NTP 4.2.8p15 has an out-of-bounds write when adding a decimal point. An adversary may be able to attack a client ntpq process, but cannot attack ntpd.

Gvariant offset table entry size is not checked in is_normal() G_variant_byteswap() can take a long time with some non-normal inputs Gvariant deserialisation does not match spec for non-normal data Glibc: dos due to memory leak in getaddrinfo.c Glibc: buffer overflow in ld.so leading to privilege escalation Gnutls: incomplete fix for cve-2023-5981 Gnutls: rejects certificate chain with distributed trust Denial-of-Service in gRPC Information leak in gRPC Denial-of-Service in gRPC Denial of Service in gRPC Core Libssh: proxycommand/proxyjump features allow injection of malicious code through hostname Arbitrary Memory Disclosure through CPU Side-Channel Attacks (Retbleed) Incorrect cipher key & IV length processing POLY1305 MAC implementation corrupts XMM registers on Windows Excessive time spent checking DH q parameter value SQLite SQLite3 make alltest sqlite3session.c sessionReadRecord heap-based overflow NULL Pointer Dereference in vim/vim Heap-based Buffer Overflow in vim/vim Use After Free in vim/vim Heap-based Buffer Overflow in vim/vim Integer Overflow or Wraparound in vim/vim Use After Free in vim/vim Untrusted Search Path in vim/vim Out-of-bounds Write in vim/vim Use After Free in vim/vim Heap-based Buffer Overflow in vim/vim Use After Free in vim/vim Heap-based Buffer Overflow in vim/vim Use-After-Free in win_close() in vim overflow in shift_line in vim Vim has heap-use-after-free at /src/charset.c:1770:12 in skipwhite Integer Overflow in :history command in Vim

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in ntp ausnutzen, um nicht näher definierte Auswirkungen zu erreichen. Die Ausnutzung erfordert eine bestimmte Konfiguration und ggf. das Mitwirken eines Administrators, beispielsweise durch Social Engineering.