memcached: specially crafted packet segmentation fault
Published Dec 12, 2013
5.0
MEDIUMCVSS 2.0
EPSS 22.32%
Description
Multiple integer signedness errors in the (1) process_bin_sasl_auth, (2) process_bin_complete_sasl_auth, (3) process_bin_update, and (4) process_bin_append_prepend functions in Memcached 1.4.5 and earlier allow remote attackers to cause a denial of service (crash) via a large body length value in a packet.
Affected products
No data.
- ≤ 1.4.5
- 1.2.7
- 1.2.8
- 1.4.0
- 1.4.1
- 1.4.2
- 1.4.3
- 1.4.4
No data.
CloudForms Management Engine 5
memcached
Will not fix
Red Hat Enterprise Linux 6
memcached
Will not fix
Red Hat Enterprise Linux 7
memcached
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| CloudForms Management Engine 5 | memcached | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | memcached | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | memcached | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 22.32% (0.22317) | 97.62th | v5 (v2026.06.15) |
| Jun 15, 2026 | 22.32% (0.22317) | 97.38th | v5 (v2026.06.15) |
| Oct 11, 2025 | 46.07% (0.46068) | 97.47th | v4 (v2025.03.14) |
| May 24, 2025 | 53.16% (0.53158) | 97.80th | v4 (v2025.03.14) |
| Mar 30, 2025 | 56.13% (0.56125) | 97.90th | v4 (v2025.03.14) |
| Mar 29, 2025 | 59.60% (0.59605) | 97.49th | v4 (v2025.03.14) |
| Mar 17, 2025 | 56.13% (0.56125) | 97.87th | v4 (v2025.03.14) |
| Jan 5, 2025 | 45.80% (0.45805) | 97.50th | v3 (v2023.03.01) |
| Dec 17, 2024 | 24.25% (0.24251) | 96.63th | v3 (v2023.03.01) |
| Aug 29, 2024 | 7.73% (0.07729) | 94.31th | v3 (v2023.03.01) |
| Jul 25, 2023 | 6.62% (0.06620) | 92.83th | v3 (v2023.03.01) |
| Jun 8, 2023 | 7.42% (0.07423) | 93.14th | v3 (v2023.03.01) |
| Mar 7, 2023 | 7.07% (0.07069) | 92.88th | v3 (v2023.03.01) |
| Mar 6, 2023 | 40.74% (0.40743) | 98.23th | v2 (v2022.01.01) |
| Feb 4, 2022 | 40.74% (0.40743) | 97.50th | v2 (v2022.01.01) |
References (12)
- http://insecurety.net/?p=872 x_refsource_MISCExploit
- http://secunia.com/advisories/56183 third-party-advisoryx_refsource_SECUNIA
- http://www.debian.org/security/2014/dsa-2832 vendor-advisoryx_refsource_DEBIAN
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:280 vendor-advisoryx_refsource_MANDRIVA
- http://www.securityfocus.com/bid/59567 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-2080-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2011-4971 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=957964 Issue Tracking
- https://code.google.com/p/memcached/issues/detail?id=192 x_refsource_MISCExploitPatch
- https://nvd.nist.gov/vuln/detail/CVE-2011-4971
- https://puppet.com/security/cve/cve-2011-4971 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2011-4971
| Link | Providers | Tags |
|---|---|---|
| http://insecurety.net/?p=872 | x_refsource_MISCExploit | |
| http://secunia.com/advisories/56183 | third-party-advisoryx_refsource_SECUNIA | |
| http://www.debian.org/security/2014/dsa-2832 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.mandriva.com/security/advisories?name=MDVSA-2013:280 | vendor-advisoryx_refsource_MANDRIVA | |
| http://www.securityfocus.com/bid/59567 | vdb-entryx_refsource_BID | |
| http://www.ubuntu.com/usn/USN-2080-1 | vendor-advisoryx_refsource_UBUNTU | |
| https://access.redhat.com/security/cve/CVE-2011-4971 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=957964 | Issue Tracking | |
| https://code.google.com/p/memcached/issues/detail?id=192 | x_refsource_MISCExploitPatch | |
| https://nvd.nist.gov/vuln/detail/CVE-2011-4971 | ||
| https://puppet.com/security/cve/cve-2011-4971 | x_refsource_CONFIRM | |
| https://www.cve.org/CVERecord?id=CVE-2011-4971 |
Change history (0)
No recorded changes yet.