CVE-2022-0982 Buffer Overflow via crafted client request in Accel-PPP v1.12
Remote attackers can trigger a buffer overflow in Accel-PPP via crafted telnet requests, potentially leading to code execution or service disruption.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-0982?
CVE-2022-0982 is a critical memory corruption vulnerability in https://accel-ppp.org/ Accel-PPP, published on 16 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The telnet_input_char function in opt/src/accel-pppd/cli/telnet.c suffers from a memory corruption vulnerability, whereby user input cmdline_len is copied into a fixed buffer b->buf without any bound checks. If the server connects with a malicious client, crafted client requests can remotely trigger this vulnerability.
Weakness: CWE-787
Which versions are affected by CVE-2022-0982?
It affects 1 product.
Products include Accel-Ppp Accel-Ppp.
How do I fix CVE-2022-0982?
No fix has been published for CVE-2022-0982 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2022-0982 being exploited?
There is no known exploitation of CVE-2022-0982 in the wild and no public exploit code.
Other vulnerabilities in https://accel-ppp.org/ Accel-PPP
- CVE-2022-24704 Buffer Overflow via Crafted IPv6 Addr Attribute Type Client Request in Accel-PPP v1.12
- CVE-2022-24705 Buffer Overflow via Crafted Ipv6 Prefix Attribute Type Client Request in accel-ppp v1.12
- CVE-2020-28194 Integer overflow in n/a
- CVE-2020-15173 Heap buffer overflow in ACCEL-PPP
- CVE-2021-42870 Memory corruption in n/a
Sources
Also known as GHSA-fhfp-8rrc-g4rw.