what you don't know can hurt you
Home Files News &[SERVICES_TAB]About Contact Add New
Showing 1 - 4 of 4 RSS Feed

CVE-2021-20239

Status Candidate

Overview

A flaw was found in the Linux kernel in versions before 5.4.92 in the BPF protocol. This flaw allows an attacker with a local account to leak information about kernel internal addresses. The highest threat from this vulnerability is to confidentiality.

Related Files

Red Hat Security Advisory 2021-4140-02
Posted Nov 10, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4140-02 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include buffer overflow, bypass, denial of service, double free, heap overflow, information leakage, null pointer, out of bounds read, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2020-0427, CVE-2020-24502, CVE-2020-24503, CVE-2020-24504, CVE-2020-24586, CVE-2020-24587, CVE-2020-24588, CVE-2020-26139, CVE-2020-26140, CVE-2020-26141, CVE-2020-26143, CVE-2020-26144, CVE-2020-26145, CVE-2020-26146, CVE-2020-26147, CVE-2020-29368, CVE-2020-29660, CVE-2020-36158, CVE-2020-36386, CVE-2021-0129, CVE-2021-20194, CVE-2021-20239, CVE-2021-23133, CVE-2021-28950, CVE-2021-28971, CVE-2021-29155
SHA-256 | 06051ab16cb42d450d376dba8b9418f4b1e3e84d93535dfa51d4c79b9b2affd5
Red Hat Security Advisory 2021-4356-28
Posted Nov 10, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4356-28 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, bypass, denial of service, double free, heap overflow, information leakage, null pointer, out of bounds read, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2020-0427, CVE-2020-24502, CVE-2020-24503, CVE-2020-24504, CVE-2020-24586, CVE-2020-24587, CVE-2020-24588, CVE-2020-26139, CVE-2020-26140, CVE-2020-26141, CVE-2020-26143, CVE-2020-26144, CVE-2020-26145, CVE-2020-26146, CVE-2020-26147, CVE-2020-27777, CVE-2020-29368, CVE-2020-29660, CVE-2020-36158, CVE-2020-36386, CVE-2021-0129, CVE-2021-20194, CVE-2021-20239, CVE-2021-23133, CVE-2021-28950, CVE-2021-28971
SHA-256 | 4dfc7aebdc7ac022001a4c7d69c2bd52229c03ec9dfec7f38b9b87cefa159f78
Ubuntu Security Notice USN-4910-1
Posted Apr 13, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4910-1 - Ryota Shiga discovered that the sockopt BPF hooks in the Linux kernel could allow a user space program to probe for valid kernel addresses. A local attacker could use this to ease exploitation of another kernel vulnerability. It was discovered that the BPF verifier in the Linux kernel did not properly handle signed add32 and sub integer overflows. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2021-20239, CVE-2021-20268, CVE-2021-3178, CVE-2021-3347, CVE-2021-3348
SHA-256 | 8e4b3413e5d7c506ac25a3356a8b323420a5e989c73ed5936ead133c16473039
Ubuntu Security Notice USN-4878-1
Posted Mar 16, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4878-1 - It was discovered that the Marvell WiFi-Ex device driver in the Linux kernel did not properly validate ad-hoc SSIDs. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Ryota Shiga discovered that the sockopt BPF hooks in the Linux kernel could allow a user space program to probe for valid kernel addresses. A local attacker could use this to ease exploitation of another kernel vulnerability. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2020-36158, CVE-2021-20239, CVE-2021-3178, CVE-2021-3347
SHA-256 | df5ccf6b30eb1254c2f01c301d72cd7482fb7ffb88f401f19a6a70416eccfa20
Page 1 of 1
Back1Next

File Archive:

December 2022

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Dec 1st
    2 Files
  • 2
    Dec 2nd
    12 Files
  • 3
    Dec 3rd
    0 Files
  • 4
    Dec 4th
    0 Files
  • 5
    Dec 5th
    14 Files
  • 6
    Dec 6th
    0 Files
  • 7
    Dec 7th
    0 Files
  • 8
    Dec 8th
    0 Files
  • 9
    Dec 9th
    0 Files
  • 10
    Dec 10th
    0 Files
  • 11
    Dec 11th
    0 Files
  • 12
    Dec 12th
    0 Files
  • 13
    Dec 13th
    0 Files
  • 14
    Dec 14th
    0 Files
  • 15
    Dec 15th
    0 Files
  • 16
    Dec 16th
    0 Files
  • 17
    Dec 17th
    0 Files
  • 18
    Dec 18th
    0 Files
  • 19
    Dec 19th
    0 Files
  • 20
    Dec 20th
    0 Files
  • 21
    Dec 21st
    0 Files
  • 22
    Dec 22nd
    0 Files
  • 23
    Dec 23rd
    0 Files
  • 24
    Dec 24th
    0 Files
  • 25
    Dec 25th
    0 Files
  • 26
    Dec 26th
    0 Files
  • 27
    Dec 27th
    0 Files
  • 28
    Dec 28th
    0 Files
  • 29
    Dec 29th
    0 Files
  • 30
    Dec 30th
    0 Files
  • 31
    Dec 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Hosting By
Rokasec
close