Vulmon Recent Vulnerabilities Research Posts Trends Blog About Contact

ALAS2KERNEL-5.15-2022-005

Related Vulnerabilities: CVE-2022-26365   CVE-2022-33740   CVE-2022-33741   CVE-2022-33742   CVE-2022-33743   CVE-2022-34918  

Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-26365) Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-33740) Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-33741) Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-33742) network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further processing to nevertheless be freed. (CVE-2022-33743) A heap buffer overflow flaw was found in the Linux kernel's Netfilter subsystem in the way a user provides incorrect input of the NFT_DATA_VERDICT type. This flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2022-34918)

Source

ALAS2KERNEL-5.15-2022-005

Amazon Linux 2 Security Advisory: ALASKERNEL-5.15-2022-005
Advisory Release Date: 2022-07-19 16:02 Pacific
Advisory Updated Date: 2022-07-21 15:48 Pacific
Severity: Important
Issue Overview:

Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-26365)

Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-33740)

Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-33741)

Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-33742)

network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further processing to nevertheless be freed. (CVE-2022-33743)

A heap buffer overflow flaw was found in the Linux kernel's Netfilter subsystem in the way a user provides incorrect input of the NFT_DATA_VERDICT type. This flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2022-34918)


Affected Packages:

kernel


Issue Correction:
Run yum update kernel to update your system.

New Packages:
aarch64:
    kernel-5.15.54-25.126.amzn2.aarch64
    kernel-headers-5.15.54-25.126.amzn2.aarch64
    kernel-debuginfo-common-aarch64-5.15.54-25.126.amzn2.aarch64
    perf-5.15.54-25.126.amzn2.aarch64
    perf-debuginfo-5.15.54-25.126.amzn2.aarch64
    python-perf-5.15.54-25.126.amzn2.aarch64
    python-perf-debuginfo-5.15.54-25.126.amzn2.aarch64
    kernel-tools-5.15.54-25.126.amzn2.aarch64
    kernel-tools-devel-5.15.54-25.126.amzn2.aarch64
    kernel-tools-debuginfo-5.15.54-25.126.amzn2.aarch64
    bpftool-5.15.54-25.126.amzn2.aarch64
    bpftool-debuginfo-5.15.54-25.126.amzn2.aarch64
    kernel-devel-5.15.54-25.126.amzn2.aarch64
    kernel-debuginfo-5.15.54-25.126.amzn2.aarch64
    kernel-livepatch-5.15.54-25.126-1.0-0.amzn2.aarch64

i686:
    kernel-headers-5.15.54-25.126.amzn2.i686

src:
    kernel-5.15.54-25.126.amzn2.src

x86_64:
    kernel-5.15.54-25.126.amzn2.x86_64
    kernel-headers-5.15.54-25.126.amzn2.x86_64
    kernel-debuginfo-common-x86_64-5.15.54-25.126.amzn2.x86_64
    perf-5.15.54-25.126.amzn2.x86_64
    perf-debuginfo-5.15.54-25.126.amzn2.x86_64
    python-perf-5.15.54-25.126.amzn2.x86_64
    python-perf-debuginfo-5.15.54-25.126.amzn2.x86_64
    kernel-tools-5.15.54-25.126.amzn2.x86_64
    kernel-tools-devel-5.15.54-25.126.amzn2.x86_64
    kernel-tools-debuginfo-5.15.54-25.126.amzn2.x86_64
    bpftool-5.15.54-25.126.amzn2.x86_64
    bpftool-debuginfo-5.15.54-25.126.amzn2.x86_64
    kernel-devel-5.15.54-25.126.amzn2.x86_64
    kernel-debuginfo-5.15.54-25.126.amzn2.x86_64
    kernel-livepatch-5.15.54-25.126-1.0-0.amzn2.x86_64

Vulmon Search

Vulmon Search is a vulnerability search engine. It gives comprehensive vulnerability information through a very simple user interface.

About

Home Recent Vulnerabilities Research Posts Trends Blog About Contact

Products

Vulmon Search Vulmon Research Vulmon Alerts Vulmap

Connect

Twitter Reddit Linkedin Facebook

Vulnerability Notification Service
You don’t have to wait for vulnerability scanning results
Get Started