CVE-2011-4862 · threatengine.sh

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CVE

CVE-2011-4862

Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT Kerberos Version 5 Applications (aka k

Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT Kerberos Version 5 Applications (aka krb5-appl) 1.0.2 and earlier, Heimdal 1.5.1 and earlier, GNU inetutils, and possibly other products allows remote attackers to execute arbitrary code via a long encryption key, as exploited in the wild in December 2011.

HIGH · CVSS 10 EPSS 0.92585

Act now

EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
EPSS percentile: top 0% of all CVEs by exploitation likelihood
Public exploit or PoC is available
CVSS base score ≥ 7.0

Sigma rules0 YARA rules0

⬡

Weakness Classification

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

▤

Affected Products & Versions

10

gnu inetutils< 1.9
heimdal project heimdal<= 1.5.1
mit krb5-appl<= 1.0.2
freebsd>= 7.3 and <= 9.0
fedoraproject fedoraall versions
debian linuxall versions
opensuseall versions
suse linux enterprise desktopall versions
Show all 10 affected productssuse linux enterprise serverall versions
suse linux enterprise software development kitall versions

⚠

Public Exploits & PoCs

4

remoteFreeBSD - Telnet Service Encryption Key ID Buffer Overflow (Metasploit)verified
remoteLinux BSD-derived Telnet Service Encryption Key ID - Remote Buffer Overflow (Metasploit)verified
remoteTelnetD encrypt_keyid - Function Pointer Overwriteverified
pocwww.exploit-db.com · 18280www.exploit-db.com

▣

Scoring & Timeline

10

HIGH · CVSS v2 (legacy) · secteam@freebsd.org

View on NVD

This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.

v2 Vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Published to NVD25 Dec 2011 · 01:55 AM

⚑

Vendor Advisories

5

suse-csafopenSUSE-SU-2024:13497-1
rhsaRHSA-2011:1851Critical
rhsaRHSA-2011:1852Critical
rhsaRHSA-2011:1853Critical
rhsaRHSA-2011:1854Critical

🔗

References & Sources

41

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

http://archives.neohapsis.com/archives/bugtraq/2011-12/0172.htmlBroken Link

http://git.savannah.gnu.org/cgit/inetutils.git/commit/?id=665f1e73cdd9b38e2d2e11b8db9958a315935592PatchThird Party Advisory

http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071627.htmlThird Party Advisory

http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071640.htmlThird Party Advisory

http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006117.htmlVendor Advisory

http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006118.htmlVendor Advisory

Show all 41 references

http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006119.htmlVendor Advisory

http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006120.htmlVendor Advisory

http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00002.htmlMailing ListThird Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00004.htmlMailing ListThird Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00005.htmlMailing ListThird Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00007.htmlMailing ListThird Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00010.htmlMailing ListThird Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00011.htmlMailing ListThird Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00014.htmlMailing ListThird Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00015.htmlMailing ListThird Party Advisory

http://osvdb.org/78020Broken Link

http://secunia.com/advisories/46239Third Party Advisory

http://secunia.com/advisories/47341Third Party Advisory

http://secunia.com/advisories/47348Third Party Advisory

http://secunia.com/advisories/47357Third Party Advisory

http://secunia.com/advisories/47359Third Party Advisory

http://secunia.com/advisories/47373Third Party Advisory

http://secunia.com/advisories/47374Third Party Advisory

http://secunia.com/advisories/47397Third Party Advisory

http://secunia.com/advisories/47399Third Party Advisory

http://secunia.com/advisories/47441Third Party Advisory

http://security.freebsd.org/advisories/FreeBSD-SA-11:08.telnetd.ascMitigationVendor Advisory

http://security.freebsd.org/patches/SA-11:08/telnetd.patchPatchVendor Advisory

http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2011-008.txtPatchVendor Advisory

http://www.debian.org/security/2011/dsa-2372Third Party Advisory

http://www.debian.org/security/2011/dsa-2373Third Party Advisory

http://www.debian.org/security/2011/dsa-2375Third Party Advisory

http://www.mandriva.com/security/advisories?name=MDVSA-2011:195Third Party Advisory

http://www.redhat.com/support/errata/RHSA-2011-1851.htmlThird Party Advisory

http://www.redhat.com/support/errata/RHSA-2011-1852.htmlThird Party Advisory

http://www.redhat.com/support/errata/RHSA-2011-1853.htmlThird Party Advisory

http://www.redhat.com/support/errata/RHSA-2011-1854.htmlThird Party Advisory

http://www.securitytracker.com/id?1026460Third Party AdvisoryVDB Entry

http://www.securitytracker.com/id?1026463Third Party AdvisoryVDB Entry

https://exchange.xforce.ibmcloud.com/vulnerabilities/71970Third Party AdvisoryVDB Entry

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