Category Archives: Advisories

Advisories

USN-6857-1: Squid vulnerabilities

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Joshua Rogers discovered that Squid incorrectly handled requests with the
urn: scheme. A remote attacker could possibly use this issue to cause
Squid to consume resources, leading to a denial of service. This issue
only affected Ubuntu 16.04 LTS. (CVE-2021-28651)

It was discovered that Squid incorrectly handled SSPI and SMB
authentication. A remote attacker could use this issue to cause Squid to
crash, resulting in a denial of service, or possibly obtain sensitive
information. This issue only affected Ubuntu 16.04 LTS. (CVE-2022-41318)

Joshua Rogers discovered that Squid incorrectly handled HTTP message
processing. A remote attacker could possibly use this issue to cause
Squid to crash, resulting in a denial of service. (CVE-2023-49285)

Joshua Rogers discovered that Squid incorrectly handled Helper process
management. A remote attacker could possibly use this issue to cause
Squid to crash, resulting in a denial of service. (CVE-2023-49286)

Joshua Rogers discovered that Squid incorrectly handled HTTP request
parsing. A remote attacker could possibly use this issue to cause
Squid to crash, resulting in a denial of service.
(CVE-2023-50269, CVE-2024-25617)

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Advisories

USN-6852-2: Wget vulnerability

Read Time:18 Second

USN-6852-1 fixed a vulnerability in Wget. This update provides
the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.

Original advisory details:

It was discovered that Wget incorrectly handled semicolons in the userinfo
subcomponent of a URI. A remote attacker could possibly trick a user into
connecting to a different host than expected.

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Advisories

USN-6856-1: FontForge vulnerabilities

Read Time:25 Second

It was discovered that FontForge incorrectly handled filenames. If a user or an
automated system were tricked into opening a specially crafted input file, a
remote attacker could possibly use this issue to perform a command injection.
(CVE-2024-25081)

It was discovered that FontForge incorrectly handled archives and compressed
files. If a user or an automated system were tricked into opening a specially
crafted input file, a remote attacker could possibly use this issue to perform
command injection. (CVE-2024-25082)

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Advisories

Polyfill.io Supply Chain Attack

Read Time:43 Second

What is the attack?Over 100,000+ sites have been impacted by a supply chain attack involving the Polyfill.io service. Polyfill is a popular tool used for enhancing browser capabilities by hundreds of thousands of sites to ensure that all website visitors can use the same codebase for unsupported functionality. Earlier this year, the polyfill.io domain was purchased, and the script was modified to redirect users to malicious and scam sites.What is the recommended Mitigation?Given the confirmed malicious operations, owners of websites using polyfill.io are advised to remove it immediately and search their code repositories for instances of polyfill.io. Users are also advised to consider using alternate services provided by Cloudflare and Fastly.What FortiGuard Coverage is available?FortiGuard Labs’ research team is investigating the coverage and has blocked all the known Indicators of compromise (IoCs).

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Advisories

USN-6854-1: OpenSSL vulnerability

Read Time:14 Second

It was discovered that OpenSSL failed to choose an appropriately short
private key size when computing shared-secrets in the Diffie-Hellman Key
Agreement Protocol. A remote attacker could possibly use this issue to cause
OpenSSL to consume resources, resulting in a denial of service.

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