Gentoo: GLSA-202003-19 High: PPP Buffer Overflow Risk Appeal
gentoo
March 15, 2020
A buffer overflow in PPP might allow a remote attacker to execute arbitrary code.
Summary
It was discovered that bounds check in PPP for the rhostname was improperly constructed in the EAP request and response functions.
Topics Covered
Resolution
All PPP users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dialup/ppp-2.4.8"
References
[ 1 ] CVE-2020-8597 https://nvd.nist.gov/vuln/detail/CVE-2020-8597
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/202003-19
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Concerns
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
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Severity: High
Title: PPP: Buffer overflow
Date: March 15, 2020
Bugs: #710308
ID: 202003-19
Topics Covered
Background
PPP is a Unix implementation of the Point-to-Point Protocol.
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Affected Packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-dialup/ppp < 2.4.8 >= 2.4.8
Impact
=====
A remote attacker, by sending specially crafted authentication data,
could possibly execute arbitrary code with the privileges of the
process or cause a Denial of Service condition.
Workaround
There is no known workaround at this time.
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