CVE-2020-35573 Denial of service in n/a
Remote attackers can cause denial of service via CPU consumption by sending a long timestamp tag in an SRS address to PostSRSd.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-35573?
CVE-2020-35573 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 20 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
srs2.c in PostSRSd before 1.10 allows remote attackers to cause a denial of service (CPU consumption) via a long timestamp tag in an SRS address.
Weakness: CWE-834
Which versions are affected by CVE-2020-35573?
It affects 2 products.
Linux distribution packages (5)
postsrsd SUSE:Package Hub 15 SP2 | All versions | 1.11-bp152.4.3.1 |
postsrsd SUSE:Package Hub 15 SP3 | All versions | 1.11-bp153.2.3.1 |
postsrsd openSUSE:Leap 15.2 | All versions | 1.11-lp152.4.3.1 |
postsrsd openSUSE:Leap 15.3 | All versions | 1.11-bp153.2.3.1 |
postsrsd openSUSE:Tumbleweed | All versions | 1.11-1.3 |
Products include Debian Debian Linux, Postsrsd Project Postsrsd.
How do I fix CVE-2020-35573?
Upgrade to a fixed version.
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-2020-35573 being exploited?
There is no known exploitation of CVE-2020-35573 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2020-35573, DLA-2502-1, GHSA-vcpj-66gx-c27m, UBUNTU-CVE-2020-35573, USN-4730-1, openSUSE-SU-2021:0646-1 and 3 more.