High severity8.2NVD Advisory· Published Sep 9, 2020· Updated Jun 17, 2026
CVE-2020-15173
CVE-2020-15173
Description
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 products
2Patches
Vulnerability mechanics
References
2- github.com/accel-ppp/accel-ppp/commit/2324bcd5ba12cf28f47357a8f03cd41b7c04c52bnvdPatchThird Party Advisory
- github.com/accel-ppp/accel-ppp/security/advisories/GHSA-rr68-fchr-69vfnvdThird Party Advisory
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