Gentoo: GLSA-201406-07: Echoping: Buffer Overflow Vulnerabilities
Summary
A boundary error exists within the "TLS_readline()" function, which can be exploited to overflow a global buffer by sending an overly long encrypted HTTP reply to Echoping. Also, a similar boundary error exists within the "SSL_readline()" function, which can be exploited in the same manner.
Resolution
All Echoping users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot -v ">=net-analyzer/echoping-6.0.2_p434"
References
[ 1 ] CVE-2010-5111 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-5111
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201406-07
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.
Synopsis
A buffer overflow in Echoping might allow remote attackers to cause a Denial of Service condition.
Background
Echoping is a small program to test performances of a remote host by sending it TCP packets.
Affected Packages
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-analyzer/echoping < 6.0.2_p434 >= 6.0.2_p434
Impact
===== A remote attacker could send a specially crafted HTTP reply, possibly resulting in a Denial of Service condition.
Workaround
There is no known workaround at this time.