-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

- ------------------------------------------------------------------------- Debian Security Advisory DSA-4941-1 security@debian.org https://www.debian.org/security/ Salvatore Bonaccorso
July 20, 2021 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : linux
CVE ID : CVE-2020-36311 CVE-2021-3609 CVE-2021-33909 CVE-2021-34693

Several vulnerabilities have been discovered in the Linux kernel that
may lead to a privilege escalation, denial of service or information
leaks.

CVE-2020-36311

A flaw was discovered in the KVM subsystem for AMD CPUs, allowing an
attacker to cause a denial of service by triggering destruction of a
large SEV VM.

CVE-2021-3609

Norbert Slusarek reported a race condition vulnerability in the CAN
BCM networking protocol, allowing a local attacker to escalate
privileges.

CVE-2021-33909

The Qualys Research Labs discovered a size_t-to-int conversion
vulnerability in the Linux kernel's filesystem layer. An
unprivileged local attacker able to create, mount, and then delete a
deep directory structure whose total path length exceeds 1GB, can
take advantage of this flaw for privilege escalation.

Details can be found in the Qualys advisory at
https://www.qualys.com/2021/07/20/cve-2021-33909/sequoia-local-privilege-escalation-linux.txt

CVE-2021-34693

Norbert Slusarek discovered an information leak in the CAN BCM
networking protocol. A local attacker can take advantage of this
flaw to obtain sensitive information from kernel stack memory.

For the stable distribution (buster), these problems have been fixed in
version 4.19.194-3.

We recommend that you upgrade your linux packages.

For the detailed security status of linux please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/linux

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
-----BEGIN PGP SIGNATURE-----

iQKTBAEBCgB9FiEERkRAmAjBceBVMd3uBUy48xNDz0QFAmD2xvFfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDQ2 NDQ0MDk4MDhDMTcxRTA1NTMxRERFRTA1NENCOEYzMTM0M0NGNDQACgkQBUy48xND z0Tp/g//af2JkknfeqLs9FHFlqiYvIl1co4zEOW6e4BO8WAtvB3q5+scTNiFgN/W 66o9sDTi+Bnuhxja/lsZEkwM5QnrcPCSndUuY8EIOBDRdAla9R3xf4vUSYQ4KVb8 re3NmfzlkiLiGd6JRZXeV8+8stUjbLc6e0EG36S2HJ6hDs7pOA+vxcR/ui8yf15e p9egIKOqznhsNFHgrZRm4R1yqgNzfkFBWeSgfuFZGsFi9b2I3FJQKDTx0TXwxerB PKtvstJ1/xKbtK8m5IdntLOPeUPXuUlhoff4cN192IRNrPCcUXf7vRJoGg6A7WP2 dfvErldL8AsJHMBEs6YqEQSajFMoJX2590Bt8VK1xZwvhirSB7ZClk4+boh8OhlG apKj/OPIi3KGPt2s8t23zq3cU6aAFyTp6VQacuS+kR/2bdF0H3iQKcB5I4HFSSx9 BxK0ZpcZSw4axt35lfVhqnoeARb2GtUBqO77CWOOdtXcxDACD3VQ8PiqxxfpGS26 V/ASWmWzCeoGs+FQ5iRoN2JC5i9VcJX32r0fbNVvj7BG+ZQBe5XZ30eOalQLPs4/ SQnBoWuMnIpl/5+6FxkPXiqzkDGnkUm2ep2gXhdFrJmn/3ugpMiAPEuETo7Q2Lfj Ze6DKkHJPBK2BaKs1UgWPNvQBVQrcs0rKMLEf6LxS0eAJHlcCdo=
=dhUe
-----END PGP SIGNATURE-----

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)