glibc: Glibc: Denial of Service via stack exhaustion during tilde expansion

A flaw was found in glibc. When processing paths that start with a tilde followed by a username, the wordexp function can be forced to allocate an excessive amount of memory on the program's stack. A remote attacker could exploit this by providing a very long username, leading to a stack exhausti...

DEBIAN-CVE-2026-6791

When expanding paths that begin with a tilde followed by a username, the internal parsetilde function extracts the username to determine the user's home directory. The implementation allocates memory for this username directly on the stack using the strndupa macro. Because the size of this...

UBUNTU-CVE-2026-6791

When expanding paths that begin with a tilde followed by a username, the internal parsetilde function extracts the username to determine the user's home directory. The implementation allocates memory for this username directly on the stack using the strndupa macro. Because the size of this...

EUVD-2026-55729

When expanding paths that begin with a tilde followed by a username, the internal parsetilde function extracts the username to determine the user's home directory. The implementation allocates memory for this username directly on the stack using the strndupa macro. Because the size of this...

CVE-2026-6791

CVE-2026-6791 concerns tilde expansion in wordexp within glibc. When expanding paths starting with ~username, parse_tilde extracts the username and allocates memory for it on the stack via strndupa. No bounds checks on the username length can exhaust stack space, enabling a stack-clash condition ...

CVE-2026-6791

When expanding paths that begin with a tilde followed by a username, the internal parsetilde function extracts the username to determine the user's home directory. The implementation allocates memory for this username directly on the stack using the strndupa macro. Because the size of this...

CVE-2026-6791 Potential stack-based buffer clash during tilde expansion in wordexp

When expanding paths that begin with a tilde followed by a username, the internal parsetilde function extracts the username to determine the user's home directory. The implementation allocates memory for this username directly on the stack using the strndupa macro. Because the size of this...

CVE-2026-54590 AsyncSSH AuthorizedKeysFile username substitution bypass through ~ and environment expansion

AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework. Version 2.23.0 contains an incomplete fix for CVE-2026-45309 in SSHServerConfig.settokens that blocks /, , and .. before %u substitution in...

CVE-2026-54590

AsyncSSH (Python, v2.23.0) contains an incomplete fix for CVE-2026-45309 in SSHServerConfig._set_tokens that blocks /, , and .. before %u substitution in AuthorizedKeysFile but fails to block a leading ~ or ${ENV}. This allows later expansion in _expand_val and Path(filename).expanduser() to esca...

Advisory ROSA-SA-2026-3301

Component: libconfuse 3.3 Operating System: ROSA-CHROME Unaffected versions: = libconfuse-3.3-3 Affected versions: libconfuse-3.3-3 CVE-ID: CVE-2022-40320 BDU-ID: 2022-05795 CVE-Crit: LOW CVE-DESC.: The vulnerability in the cfgtildeexpand function of the configuration file parser library libConfu...

Astra Linux – Vulnerability in glibc

A use-after-free vulnerability introduced in the glibc upstream version 2.14 was identified in the way the tilde expansion was performed. Directory paths that contained a tilde followed by a valid username were affected by this issue. A local attacker could exploit this flaw by creating a special...

EUVD-2020-12583

Malware in sbrugna...

CLSA-2023-1685380447 Fix CVE(s): CVE-2023-2610

SECURITY UPDATE: Crash when expanding "" in substitute causes very long text - debian/patches/CVE-2023-2610.patch: Limit the text length to MAXCOL - CVE-2023-2610...

K49921213: glibc vulnerability CVE-2020-1752

Security Advisory Description A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username were affected by this issue. A local attacker could exploit thi...

SUSE CVE-2006-4262

Multiple buffer overflows in cscope 15.5 and earlier allow user-assisted attackers to cause a denial of service crash and possibly execute arbitrary code via multiple vectors including 1 a long pathname that is not properly handled during file list parsing, 2 long pathnames that result from path...

SUSE CVE-2020-1752

A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username were affected by this issue. A local attacker could exploit this flaw by creating a specially...

CVE-2022-40320

cfgtildeexpand in confuse.c in libConfuse 3.3 has a heap-based buffer over-read...

SUSE SLES12 Security Update : glibc (SUSE-SU-2022:1123-1)

The remote SUSE Linux SLES12 / SLESSAP12 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2022:1123-1 advisory. - A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out. Directo...

glibc: use-after-free in glob() function when expanding ~user

A use-after-free vulnerability was found in glibc in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username were affected by this issue. A local attacker could exploit this flaw by creating a specially crafted path that, when processe...

A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username were affected by this issue. A local attacker could exploit this flaw by creating a specially crafted path that when processed by the glob function would potentially lead to arbitrary code execution. This was fixed in version 2.32.

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