Category Archives: Advisories

USN-5658-3: DHCP vulnerabilities

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USN-5658-1 fixed several vulnerabilities in DHCP. This update provides
the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that DHCP incorrectly handled option reference counting.
A remote attacker could possibly use this issue to cause DHCP servers to
crash, resulting in a denial of service. (CVE-2022-2928)

It was discovered that DHCP incorrectly handled certain memory operations.
A remote attacker could possibly use this issue to cause DHCP clients and
servers to consume resources, leading to a denial of service.
(CVE-2022-2929)

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USN-5733-1: FLAC vulnerabilities

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It was discovered that FLAC was not properly performing memory management
operations, which could result in a memory leak. An attacker could possibly
use this issue to cause FLAC to consume resources, leading to a denial of
service. (CVE-2017-6888)

It was discovered that FLAC was not properly performing bounds checking
operations when encoding or decoding data. If a user or automated system
were tricked into processing a specially crafted file, an attacker could
possibly use this issue to expose sensitive information or to cause FLAC
to crash, leading to a denial of service. (CVE-2020-0499, CVE-2021-0561)

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heimdal-7.7.1-3.fc36

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FEDORA-2022-dba9ba8e2b

Packages in this update:

heimdal-7.7.1-3.fc36

Update description:

Fixes:

Delay service starts until after network is online (rhbz#2005501)
Restart services on package update (will apply when updating from this release)

This release fixes the following Security Vulnerabilities:

CVE-2022-42898 PAC parse integer overflows
CVE-2022-3437 Overflows and non-constant time leaks in DES{,3} and arcfour
CVE-2022-41916 Fix Unicode normalization read of 1 bytes past end of array
CVE-2021-44758 NULL dereference DoS in SPNEGO acceptors
CVE-2021-3671 A null pointer de-reference when handling missing sname in TGS-REQ
CVE-2022-44640 Heimdal KDC: invalid free in ASN.1 codec

Note that CVE-2022-44640 is a severe vulnerability, possibly a 10.0 on the Common Vulnerability Scoring System (CVSS) v3.

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heimdal-7.7.1-3.fc35

Read Time:41 Second

FEDORA-2022-cbbd105d08

Packages in this update:

heimdal-7.7.1-3.fc35

Update description:

Fixes:

Delay service starts until after network is online (rhbz#2005501)
Restart services on package update (will apply when updating from this release)

This release fixes the following Security Vulnerabilities:

CVE-2022-42898 PAC parse integer overflows
CVE-2022-3437 Overflows and non-constant time leaks in DES{,3} and arcfour
CVE-2022-41916 Fix Unicode normalization read of 1 bytes past end of array
CVE-2021-44758 NULL dereference DoS in SPNEGO acceptors
CVE-2021-3671 A null pointer de-reference when handling missing sname in TGS-REQ
CVE-2022-44640 Heimdal KDC: invalid free in ASN.1 codec

Note that CVE-2022-44640 is a severe vulnerability, possibly a 10.0 on the Common Vulnerability Scoring System (CVSS) v3.

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heimdal-7.7.1-3.fc37

Read Time:41 Second

FEDORA-2022-2c77cee4b5

Packages in this update:

heimdal-7.7.1-3.fc37

Update description:

Fixes:

Delay service starts until after network is online (rhbz#2005501)
Restart services on package update (will apply when updating from this release)

This release fixes the following Security Vulnerabilities:

CVE-2022-42898 PAC parse integer overflows
CVE-2022-3437 Overflows and non-constant time leaks in DES{,3} and arcfour
CVE-2022-41916 Fix Unicode normalization read of 1 bytes past end of array
CVE-2021-44758 NULL dereference DoS in SPNEGO acceptors
CVE-2021-3671 A null pointer de-reference when handling missing sname in TGS-REQ
CVE-2022-44640 Heimdal KDC: invalid free in ASN.1 codec

Note that CVE-2022-44640 is a severe vulnerability, possibly a 10.0 on the Common Vulnerability Scoring System (CVSS) v3.

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USN-5686-3: Git vulnerabilities

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USN-5686-1 fixed vulnerabilities in Git. This update provides the corresponding
updates for Ubuntu 22.10.

Original advisory details:

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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