exploit the possibilities
Home Files News &[SERVICES_TAB]About Contact Add New
Showing 1 - 2 of 2 RSS Feed

CVE-2023-52497

Status Candidate

Overview

In the Linux kernel, the following vulnerability has been resolved: erofs: fix lz4 inplace decompression Currently EROFS can map another compressed buffer for inplace decompression, that was used to handle the cases that some pages of compressed data are actually not in-place I/O. However, like most simple LZ77 algorithms, LZ4 expects the compressed data is arranged at the end of the decompressed buffer and it explicitly uses memmove() to handle overlapping: __________________________________________________________ |_ direction of decompression --> ____ |_ compressed data _| Although EROFS arranges compressed data like this, it typically maps two individual virtual buffers so the relative order is uncertain. Previously, it was hardly observed since LZ4 only uses memmove() for short overlapped literals and x86/arm64 memmove implementations seem to completely cover it up and they don't have this issue. Juhyung reported that EROFS data corruption can be found on a new Intel x86 processor. After some analysis, it seems that recent x86 processors with the new FSRM feature expose this issue with "rep movsb". Let's strictly use the decompressed buffer for lz4 inplace decompression for now. Later, as an useful improvement, we could try to tie up these two buffers together in the correct order.

Related Files

Ubuntu Security Notice USN-6892-1
Posted Jul 11, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6892-1 - It was discovered that the ATA over Ethernet driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the Atheros 802.11ac wireless driver did not properly validate certain data structures, leading to a NULL pointer dereference. An attacker could possibly use this to cause a denial of service.

tags | advisory, denial of service, arbitrary, kernel
systems | linux, ubuntu
advisories | CVE-2023-52434, CVE-2023-52497, CVE-2023-52620, CVE-2023-52640, CVE-2023-52641, CVE-2023-52644, CVE-2023-52645, CVE-2023-52650, CVE-2023-52662, CVE-2023-6270, CVE-2023-7042, CVE-2024-0841, CVE-2024-21823, CVE-2024-22099
SHA-256 | 1be86e553b162ce9d9fd8fc31873fb51eaca06565f561d7ea634d412de51ed92
Ubuntu Security Notice USN-6828-1
Posted Jun 12, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6828-1 - Zheng Wang discovered that the Broadcom FullMAC WLAN driver in the Linux kernel contained a race condition during device removal, leading to a use- after-free vulnerability. A physically proximate attacker could possibly use this to cause a denial of service. It was discovered that the ATA over Ethernet driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel
systems | linux, ubuntu
advisories | CVE-2022-0001, CVE-2023-47233, CVE-2023-52486, CVE-2023-52491, CVE-2023-52492, CVE-2023-52493, CVE-2023-52497, CVE-2023-52530, CVE-2023-52583, CVE-2023-52588, CVE-2023-52594, CVE-2023-52598, CVE-2023-52599, CVE-2023-52601
SHA-256 | 488517b61336dab3bc51a5c78cc3f59815f9cbaf86589ad479bd44ac1cb98921
Page 1 of 1
Back1Next

File Archive:

September 2024

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

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2024 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close