Category Archives: Advisories

Advisories

xen-4.15.3-6.fc35

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FEDORA-2022-1859e9912e

Packages in this update:

xen-4.15.3-6.fc35

Update description:

add patch to fix an incorrect backport
Arm: unbounded memory consumption for 2nd-level page tables [XSA-409,
CVE-2022-33747] (#2135268)
P2M pool freeing may take excessively long [XSA-410, CVE-2022-33746]
(#2135641)
lock order inversion in transitive grant copy handling [XSA-411,
CVE-2022-33748] (#2135263)

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Advisories

USN-5687-1: Linux kernel (Azure) vulnerabilities

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It was discovered that the SUNRPC RDMA protocol implementation in the Linux
kernel did not properly calculate the header size of a RPC message payload.
A local attacker could use this to expose sensitive information (kernel
memory). (CVE-2022-0812)

Moshe Kol, Amit Klein and Yossi Gilad discovered that the IP implementation
in the Linux kernel did not provide sufficient randomization when
calculating port offsets. An attacker could possibly use this to expose
sensitive information. (CVE-2022-1012, CVE-2022-32296)

Duoming Zhou discovered that race conditions existed in the timer handling
implementation of the Linux kernel’s Rose X.25 protocol layer, resulting in
use-after-free vulnerabilities. A local attacker could use this to cause a
denial of service (system crash). (CVE-2022-2318)

Roger Pau Monné discovered that the Xen virtual block driver in the Linux
kernel did not properly initialize memory pages to be used for shared
communication with the backend. A local attacker could use this to expose
sensitive information (guest kernel memory). (CVE-2022-26365)

Roger Pau Monné discovered that the Xen paravirtualization frontend in the
Linux kernel did not properly initialize memory pages to be used for shared
communication with the backend. A local attacker could use this to expose
sensitive information (guest kernel memory). (CVE-2022-33740)

It was discovered that the Xen paravirtualization frontend in the Linux
kernel incorrectly shared unrelated data when communicating with certain
backends. A local attacker could use this to cause a denial of service
(guest crash) or expose sensitive information (guest kernel memory).
(CVE-2022-33741, CVE-2022-33742)

Oleksandr Tyshchenko discovered that the Xen paravirtualization platform in
the Linux kernel on ARM platforms contained a race condition in certain
situations. An attacker in a guest VM could use this to cause a denial of
service in the host OS. (CVE-2022-33744)

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Advisories

USN-5686-1: Git vulnerabilities

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Cory Snider discovered that Git incorrectly handled certain symbolic links.
An attacker could possibly use this issue to cause an unexpected behaviour.
(CVE-2022-39253)

Kevin Backhouse discovered that Git incorrectly handled certain command strings.
An attacker could possibly use this issue to arbitrary code execution.
(CVE-2022-39260)

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Advisories

CVE-2020-15853

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supybot-fedora implements the command ‘refresh’, that refreshes the cache of all users from FAS. This takes quite a while to run, and zodbot stops responding to requests during this time.

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