NVD - CVE-2026-46333

3 min read Original article ↗

Change History

9 change records found show changes

CVE Modified by CISA-ADP 5/21/2026 10:16:48 AM

Action Type Old Value New Value
Removed CVSS V3.1
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVE Modified by CVE 5/20/2026 4:16:40 PM

Action Type Old Value New Value
Added Reference
http://www.openwall.com/lists/oss-security/2026/05/20/14
Added Reference
http://www.openwall.com/lists/oss-security/2026/05/20/16

CVE Modified by kernel.org 5/20/2026 1:16:24 PM

Action Type Old Value New Value
Added CVSS V3.1
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVE Modified by CVE 5/19/2026 12:16:22 PM

Action Type Old Value New Value
Added Reference
https://lists.debian.org/debian-lts-announce/2026/05/msg00035.html

CVE Modified by CISA-ADP 5/18/2026 9:16:33 AM

Action Type Old Value New Value
Added CVSS V3.1
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Added CWE
CWE-269
Added Reference
https://github.com/0xdeadbeefnetwork/ssh-keysign-pwn/

CVE Modified by kernel.org 5/18/2026 3:16:12 AM

Action Type Old Value New Value
Added Reference
https://git.kernel.org/stable/c/31e62c2ebbfdc3fe3dbdf5e02c92a9dc67087a3a

CVE Modified by CVE 5/16/2026 9:16:16 AM

Action Type Old Value New Value
Added Reference
https://lists.debian.org/debian-lts-announce/2026/05/msg00032.html

CVE Modified by CVE 5/15/2026 4:16:49 PM

Action Type Old Value New Value
Added Reference
http://www.openwall.com/lists/oss-security/2026/05/15/9

New CVE Received from kernel.org 5/15/2026 10:16:35 AM

Action Type Old Value New Value
Added Description
In the Linux kernel, the following vulnerability has been resolved:

ptrace: slightly saner 'get_dumpable()' logic

The 'dumpability' of a task is fundamentally about the memory image of
the task - the concept comes from whether it can core dump or not - and
makes no sense when you don't have an associated mm.

And almost all users do in fact use it only for the case where the task
has a mm pointer.

But we have one odd special case: ptrace_may_access() uses 'dumpable' to
check various other things entirely independently of the MM (typically
explicitly using flags like PTRACE_MODE_READ_FSCREDS).  Including for
threads that no longer have a VM (and maybe never did, like most kernel
threads).

It's not what this flag was designed for, but it is what it is.

The ptrace code does check that the uid/gid matches, so you do have to
be uid-0 to see kernel thread details, but this means that the
traditional "drop capabilities" model doesn't make any difference for
this all.

Make it all make a *bit* more sense by saying that if you don't have a
MM pointer, we'll use a cached "last dumpability" flag if the thread
ever had a MM (it will be zero for kernel threads since it is never
set), and require a proper CAP_SYS_PTRACE capability to override.
Added Reference
https://git.kernel.org/stable/c/01363cb3fbd0238ffdeb09f53e9039c9edf8a730
Added Reference
https://git.kernel.org/stable/c/15b828a46f305ae9f05a7c16914b3ce273474205
Added Reference
https://git.kernel.org/stable/c/2a93a4fac7b6051d3be7cd1b015fe7320cd0404d
Added Reference
https://git.kernel.org/stable/c/4709234fd1b95136ceb789f639b1e7ea5de1b181
Added Reference
https://git.kernel.org/stable/c/6e5b51e74a40d377bcd3081dd33fbaa0e1aa7e3d
Added Reference
https://git.kernel.org/stable/c/8f907d345bae8f4b3f004c5abc56bf2dfb851ea7
Added Reference
https://git.kernel.org/stable/c/93d4ba49d18e3d7fb41a9927c2d0cca5e9dfefd6