CVE-2023-46848 Squid: denial of service in ftp
Remote attackers can cause a denial of service in Squid by sending malicious FTP URLs in HTTP requests or via FTP native input.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-46848?
CVE-2023-46848 is a high-severity denial of service vulnerability in Redhat Enterprise Linux, published on 3 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Squid is vulnerable to Denial of Service, where a remote attacker can perform DoS by sending ftp:// URLs in HTTP Request messages or constructing ftp:// URLs from FTP Native input.
Weakness: CWE-681
Which versions are affected by CVE-2023-46848?
It affects 5 products.
Products include Redhat Enterprise Linux, Redhat Enterprise Linux Eus, Redhat Enterprise Linux Server Aus, Redhat Enterprise Linux Server Tus, Squid-Cache Squid.
How do I fix CVE-2023-46848?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-46848 being exploited?
There is no known exploitation of CVE-2023-46848 in the wild and no public exploit code.
Other vulnerabilities in Redhat Enterprise Linux
- CVE-2018-14667 Red Hat JBoss RichFaces Framework Expression Language Injection
- CVE-2021-20325 Missing fixes for CVE-2021-40438 and CVE-2021-26691 in the versions of httpd, as shipped in Red Hat Enterprise Linux 8.5.0, causes a securit
- CVE-2018-25011 Memory corruption in libwebp
- CVE-2018-25014 Other in libwebp
- CVE-2014-3585 Supply chain in redhat-upgrade-tool
Sources
Also known as ALPINE-CVE-2023-46848, AZL-110525, AZL-31903, CLSA-2026-1775643576, DEBIAN-CVE-2023-46848, GHSA-2g3c-pg7q-g59w and 2 more.