CVE-2020-8597

NameCVE-2020-8597
Descriptioneap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-2097-1, DSA-4632-1
NVD severityhigh
Debian Bugs950618, 951291

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
lwip (PTS)buster2.0.3-3vulnerable
bullseye, sid2.1.2+dfsg1-4vulnerable
ppp (PTS)jessie2.4.6-3.1vulnerable
jessie (security)2.4.6-3.1+deb8u1fixed
stretch2.4.7-1+4vulnerable
stretch (security)2.4.7-1+4+deb9u1fixed
buster (security)2.4.7-2+4.1+deb10u1fixed
bullseye, sid, buster2.4.7-2+4.1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
lwipsource(unstable)(unfixed)951291
pppsource(unstable)(unfixed)950618
pppsourcebuster2.4.7-2+4.1+deb10u1DSA-4632-1
pppsourceexperimental2.4.8-1+1~exp1
pppsourcejessie2.4.6-3.1+deb8u1DLA-2097-1
pppsourcestretch2.4.7-1+4+deb9u1DSA-4632-1

Notes

[buster] - lwip <no-dsa> (Minor issue)
http://git.savannah.nongnu.org/cgit/lwip.git/commit/?id=2ee3cbe69c6d2805e64e7cac2a1c1706e49ffd86
https://github.com/paulusmack/ppp/commit/8d7970b8f3db727fe798b65f3377fe6787575426

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