Heap buffer overflow in ACCEL-PPP
CVE-2020-15173

8.2HIGH

Key Information:

Vendor

Accel-ppp

Status
Accel-ppp
Vendor
CVE Published:
9 September 2020

What is CVE-2020-15173?

In ACCEL-PPP (an implementation of PPTP/PPPoE/L2TP/SSTP), there is a buffer overflow when receiving an l2tp control packet ith an AVP which type is a string and no hidden flags, length set to less than 6. If your application is used in open networks or there are untrusted nodes in the network it is highly recommended to apply the patch. The problem was patched with commit 2324bcd5ba12cf28f47357a8f03cd41b7c04c52b As a workaround changes of commit 2324bcd5ba12cf28f47357a8f03cd41b7c04c52b can be applied to older versions.

Affected Version(s)

accel-ppp <= 1.12.0-92-g38b6104

References

https://github.com/accel-ppp/accel-ppp/security/advisorie...
x_refsource_CONFIRM
https://github.com/accel-ppp/accel-ppp/commit/2324bcd5ba1...
x_refsource_MISC

CVSS V3.1

Score:
8.2
Severity:
HIGH
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.