Описание
Security update for glibc
This update for glibc fixes the following issues:
Security fixes:
- CVE-2025-0395: Fixed buffer overflow in the assert() function (bsc#1236282).
- CVE-2026-0861: Fixed inadequate size check in the memalign suite may result in an integer overflow (bsc#1256766).
- CVE-2026-0915: Fixed uninitialized stack buffer used as DNS query name when net==0 in _nss_dns_getnetbyaddr_r (bsc#1256822).
- CVE-2025-15281: Fixed uninitialized memory may cause the process abort (bsc#1257005).
Other fixes:
- NPTL: Optimize trylock for high cache contention workloads (bsc#1256436)
Список пакетов
openSUSE Leap 16.0
Ссылки
- SUSE Security Ratings
- SUSE Bug 1236282
- SUSE Bug 1256436
- SUSE Bug 1256766
- SUSE Bug 1256822
- SUSE Bug 1257005
- SUSE CVE CVE-2025-0395 page
- SUSE CVE CVE-2025-15281 page
- SUSE CVE CVE-2026-0861 page
- SUSE CVE CVE-2026-0915 page
Описание
When the assert() function in the GNU C Library versions 2.13 to 2.40 fails, it does not allocate enough space for the assertion failure message string and size information, which may lead to a buffer overflow if the message string size aligns to page size.
Затронутые продукты
Ссылки
- CVE-2025-0395
- SUSE Bug 1236282
Описание
Calling wordexp with WRDE_REUSE in conjunction with WRDE_APPEND in the GNU C Library version 2.0 to version 2.42 may cause the interface to return uninitialized memory in the we_wordv member, which on subsequent calls to wordfree may abort the process.
Затронутые продукты
Ссылки
- CVE-2025-15281
- SUSE Bug 1257005
Описание
Passing too large an alignment to the memalign suite of functions (memalign, posix_memalign, aligned_alloc) in the GNU C Library version 2.30 to 2.42 may result in an integer overflow, which could consequently result in a heap corruption. Note that the attacker must have control over both, the size as well as the alignment arguments of the memalign function to be able to exploit this. The size parameter must be close enough to PTRDIFF_MAX so as to overflow size_t along with the large alignment argument. This limits the malicious inputs for the alignment for memalign to the range [1<<62+ 1, 1<<63] and exactly 1<<63 for posix_memalign and aligned_alloc. Typically the alignment argument passed to such functions is a known constrained quantity (e.g. page size, block size, struct sizes) and is not attacker controlled, because of which this may not be easily exploitable in practice. An application bug could potentially result in the input alignment being too large, e.g. due to a different buffer overflow or integer overflow in the application or its dependent libraries, but that is again an uncommon usage pattern given typical sources of alignments.
Затронутые продукты
Ссылки
- CVE-2026-0861
- SUSE Bug 1256766
- SUSE Bug 1256913
Описание
Calling getnetbyaddr or getnetbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend for networks and queries for a zero-valued network in the GNU C Library version 2.0 to version 2.42 can leak stack contents to the configured DNS resolver.
Затронутые продукты
Ссылки
- CVE-2026-0915
- SUSE Bug 1256822