CVE-2026-15041 389-ds-base: 389-ds-base: non-constant-time comparison in pbkdf2-sha256 password verification

A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password verification function uses standard memcmp for comparing password hashes instead of a constant-time comparison function. A remote attacker could potentially use timing measurements of LDAP bind attempts to infer partial hash...

CVE-2026-41515

OP-TEE (Trusted Execution Environment for Arm Cortex-A TrustZone) has a vulnerability in the RSA-OAEP decryption path within the NXP CAAM crypto driver. From version 3.9.0 up to, but not including, 4.11.0, the driver uses non-constant-time memcmp() for label hash verification, exposing a Manger-s...

CVE-2026-47784

In memcached before 1.6.42, password data for SASL password database authentication has a timing side channel because memcmp is used by saslserveruserdbcheckpass...

The vulnerability of the grub_crypto_memcmp function in the GNU GRUB operating system’s loader (formerly Grub2) allows a attacker to compromise the confidentiality of the protected information.

The vulnerability of the grubcryptomemcmp function in the GNU GRUB formerly Grub2 operating system is related to the disclosure of information due to timing discrepancies. Exploiting this vulnerability could allow an attacker to compromise the confidentiality of the protected information...

glibc: nscd client crash on x86_64 under high nscd load

A flaw was found in glibc. When calling NSS-backed functions that support caching via nscd, the nscd client under high load on x8664 systems may call the memcmp function on inputs that are concurrently modified by other processes or threads, causing a crash and resulting in a denial of service...

CVE-2026-3904

Calling NSS-backed functions that support caching via nscd may call the nscd client side code and in the GNU C Library version 2.36 under high load on x8664 systems, the client may call memcmp on inputs that are concurrently modified by other processes or threads and crash. The nscd client in the...

CVE-2026-3904

The GNU C Library (glibc) versions 2.35 and 2.36 are vulnerable to a crash in the nscd client when running on x86_64 systems under high load. The root cause is an optimized memcmp implementation that fails when invoked with inputs concurrently modified by other threads or processes, leading to un...

Node.js: Timing side-channel in HMAC verification via memcmp() in crypto_hmac.cc leads to potential MAC forgery

Vulnerability description not provided...

kernel: efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare

A slab-out-of-bounds exists in the linux kernel in efivarfsdcompare, such that the issue can be triggered by parallel lookups using an invalid filename due to an incorrect memcmp function...

EulerOS 2.0 SP13 : grub2 (EulerOS-SA-2025-2261)

According to the versions of the grub2 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : GNU GRUB aka GRUB2 through 2.12 has a heap-based buffer overflow in fs/hfs.c via crafted sblock data in an HFS filesystem.CVE-2024-56737 GNU GRUB a...

kernel: efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare

A slab-out-of-bounds exists in the linux kernel in efivarfsdcompare, such that the issue can be triggered by parallel lookups using an invalid filename due to an incorrect memcmp function...

EulerOS 2.0 SP10 : grub2 (EulerOS-SA-2025-2098)

According to the versions of the grub2 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : GNU GRUB aka GRUB2 through 2.12 does not use a constant-time algorithm for grubcryptomemcmp and thus allows side-channel attacks.CVE-2024-56738...

GNU GRUB (aka GRUB2) through 2.12 does not use a constant-time algorithm for grub_crypto_memcmp and thus allows side-channel attacks.

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SUSE-SU-2025:02772-1 Recommended update for grub2

This update for grub2 fixes the following issues: - CVE-2024-56738: Fixed side-channel attack due to not constant-time algorithm in grubcryptomemcmp bsc1234959 Other fixes: - Fix test -f and -s do not work properly over the network files served via tftp and http bsc1246157, bsc1246237 - Skip moun...

Security update for grub2

This update for grub2 fixes the following issues: CVE-2024-56738: Fixed side-channel attack due to not constant-time algorithm in grubcryptomemcmp bsc1234959 Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or "zypper patch"...

Security update for grub2

This update for grub2 fixes the following issues: CVE-2024-56738: Fixed side-channel attack due to not constant-time algorithm in grubcryptomemcmp bsc1234959 Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or "zypper patch"...

DEBIAN-CVE-2024-56738

GNU GRUB aka GRUB2 through 2.12 does not use a constant-time algorithm for grubcryptomemcmp and thus allows side-channel attacks...

AZL-54709 CVE-2024-56738 affecting package grub2 2.06-27

GNU GRUB aka GRUB2 through 2.12 does not use a constant-time algorithm for grubcryptomemcmp and thus allows side-channel attacks...

DEBIAN-CVE-2024-41016

In the Linux kernel, the following vulnerability has been resolved: ocfs2: strict bound check before memcmp in ocfs2xattrfindentry xattr in ocfs2 maybe 'non-indexed', which saved with additional space requested. It's better to check if the memory is out of bound before memcmp, although this...

DEBIAN-CVE-2024-25714

In Rhonabwy through 1.1.13, HMAC signature verification uses a strcmp function that is vulnerable to side-channel attacks, because it stops the comparison when the first difference is spotted in the two signatures. The fix uses gnutlsmemcmp, which has constant-time execution...