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Vulnerability record · CVE-2009-1255 · published 30 April 2009

CVE-2009-1255: Memcachedb memcached information exposure vulnerability

Memcachedb · Memcached

The process_stat function in (1) Memcached before 1.2.8 and (2) MemcacheDB 1.2.0 discloses (a) the contents of /proc/self/maps in response to a stats maps command and (b) memory-allocation statistics in response to a stats malloc command, which allows remote attackers to obtain sensitive information such as the locations of memory regions, and defeat ASLR protection, by sending a command to the daemon's TCP port.

5.0 CVSS 2.0 Medium EPSS 2.3% · top 17.8% CWE-200 · Information exposure
5.0CVSS 2.0 base score
2.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
38References, 4 tagged exploit
16 Jun 2026Last modified by NVD

Description

The process_stat function in (1) Memcached before 1.2.8 and (2) MemcacheDB 1.2.0 discloses (a) the contents of /proc/self/maps in response to a stats maps command and (b) memory-allocation statistics in response to a stats malloc command, which allows remote attackers to obtain sensitive information such as the locations of memory regions, and defeat ASLR protection, by sending a command to the daemon's TCP port.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://archives.neohapsis.com/archives/fulldisclosure/2009-04/0282.html
http://code.google.com/p/memcachedb/source/browse/trunk/ChangeLog?spec=svn98&r=98
http://code.google.com/p/memcachedb/source/detail?r=98
http://code.google.com/p/memcachedb/source/diff?spec=svn98&r=98&format=side&path=/trunk/memcachedb.c ExploitPatch
http://groups.google.com/group/memcached/browse_thread/thread/ff96a9b88fb5d40e
http://osvdb.org/54127
http://secunia.com/advisories/34915 Vendor Advisory
http://secunia.com/advisories/34932 Vendor Advisory
http://secunia.com/advisories/35175
http://www.mandriva.com/security/advisories?name=MDVSA-2009:105
http://www.positronsecurity.com/advisories/2009-001.html Exploit
http://www.securityfocus.com/archive/1/503064/100/0/threaded
http://www.securityfocus.com/bid/34756
http://www.securitytracker.com/id?1022140
http://www.vupen.com/english/advisories/2009/1196 Vendor Advisory
http://www.vupen.com/english/advisories/2009/1197 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/50221
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg00851.html
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01256.html
http://archives.neohapsis.com/archives/fulldisclosure/2009-04/0282.html
http://code.google.com/p/memcachedb/source/browse/trunk/ChangeLog?spec=svn98&r=98
http://code.google.com/p/memcachedb/source/detail?r=98
http://code.google.com/p/memcachedb/source/diff?spec=svn98&r=98&format=side&path=/trunk/memcachedb.c ExploitPatch
http://groups.google.com/group/memcached/browse_thread/thread/ff96a9b88fb5d40e
http://osvdb.org/54127
http://secunia.com/advisories/34915 Vendor Advisory
http://secunia.com/advisories/34932 Vendor Advisory
http://secunia.com/advisories/35175
http://www.mandriva.com/security/advisories?name=MDVSA-2009:105
http://www.positronsecurity.com/advisories/2009-001.html Exploit
http://www.securityfocus.com/archive/1/503064/100/0/threaded
http://www.securityfocus.com/bid/34756
http://www.securitytracker.com/id?1022140
http://www.vupen.com/english/advisories/2009/1196 Vendor Advisory
http://www.vupen.com/english/advisories/2009/1197 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/50221
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg00851.html
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01256.html

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2009-1255), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.