It was discovered systemd does not correctly check the content of PIDFile files before using it to kill processes. When a service is run from an unprivileged user (e.g. User field set in the service file), a local attacker who is able to write to the PIDFile of the mentioned service may use this flaw to trick systemd into killing other services and/or privileged processes. Versions before v237 are vulnerable.

It was discovered systemd does not correctly check the content of PIDFile files before using it to kill processes. When a service is run from an unprivileged user (e.g. User field set in the service file), a local attacker who is able to write to the PIDFile of the mentioned service may use this flaw to trick systemd into killing other services and/or privileged processes. Versions before v237 are vulnerable.

glibc: getaddrinfo should reject IP addresses with trailing characters ROHNP: Key Extraction Side Channel in Multiple Crypto Libraries openssl: timing side channel attack in the DSA signature algorithm procps: Local privilege escalation in top LibRaw: DoS in parse_rollei function in internal/dcraw_common.cpp LibRaw: DoS in parse_sinar_ia function in internal/dcraw_common.cpp nss: Cache side-channel variant of the Bleichenbacher attack binutils: Stack Exhaustion in the demangling functions provided by libiberty binutils: NULL pointer dereference in work_stuff_copy_to_from in cplus-dem.c. curl: NTLM password overflow via integer overflow python: Missing salt initialization in _elementtree.c module systemd: line splitting via fgets() allows for state injection during daemon-reexec elfutils: Heap-based buffer over-read in libdw/dwarf_getaranges.c:dwarf_getaranges() via crafted file elfutils: Double-free due to double decompression of sections in crafted ELF causes crash elfutils: Heap-based buffer over-read in libdw/dwarf_getabbrev.c and libwd/dwarf_hasattr.c causes crash curl: Heap-based buffer over-read in the curl tool warning formatting systemd: out-of-bounds read when parsing a crafted syslog message systemd: kills privileged process if unprivileged PIDFile was tampered elfutils: invalid memory address dereference was discovered in dwfl_segment_report_module.c in libdwfl elfutils: eu-size cannot handle recursive ar files elfutils: Divide-by-zero in arlib_add_symbols functio…

systemd: line splitting via fgets() allows for state injection during daemon-reexec systemd: out-of-bounds read when parsing a crafted syslog message systemd: kills privileged process if unprivileged PIDFile was tampered

Affected: Ubuntu:16.04:LTS: systemd

It was discovered systemd does not correctly check the content of PIDFile files before using it to kill processes. When a service is run from an unprivileged user (e.g. User field set in the service file), a local attacker who is able to write to the PIDFile of the mentioned service may use this flaw to trick systemd into killing other services and/or privileged processes. Versions before v237 are vulnerable.