CVE-2023-27478
What it is
libmemcached-awesome is an open source C/C++ client library and tools for the memcached server. `libmemcached` could return data for a previously requested key, if that previous request timed out due to a low `POLL_TIMEOUT`. This issue has been addressed in version 1.1.4. Users are advised to upgrade. There are several ways to workaround or lower the probability of this bug affecting a given deployment. 1: use a reasonably high `POLL_TIMEOUT` setting, like the default. 2: use separate libmemcached connections for unrelated data. 3: do not re-use libmemcached connections in an unknown state.
At a glance
- Exploitability
- Can be exploited over the network without logging in. Limited direct impact.
- Exploit odds
- 0.7% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.7% in the next 30 days (EPSS).
- Severity: 6.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.7% · EPSS, next 30 days
- Weakness
- CWE-200 · Information exposure
- Record status
- Modified
Affected
- Awesome Libmemcached < 1.1.4
Attack profile CVSS 3.1 · 6.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2023-27478.md and follow it. Check whether this project is affected by CVE-2023-27478. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/awesomized/libmemcached/commit/48dcc61a
- https://github.com/awesomized/libmemcached/releases/tag/1.1.4
- https://github.com/awesomized/libmemcached/security/advisories/GHSA-wwmh-39wj-fx59
- https://github.com/php-memcached-dev/php-memcached/issues/531
- https://github.com/awesomized/libmemcached/commit/48dcc61a
- https://github.com/awesomized/libmemcached/releases/tag/1.1.4
- https://github.com/awesomized/libmemcached/security/advisories/GHSA-wwmh-39wj-fx59
- https://github.com/php-memcached-dev/php-memcached/issues/531
References
- https://github.com/awesomized/libmemcached/commit/48dcc61a
- https://github.com/awesomized/libmemcached/releases/tag/1.1.4
- https://github.com/awesomized/libmemcached/security/advisories/GHSA-wwmh-39wj-fx59
- https://github.com/php-memcached-dev/php-memcached/issues/531
- https://github.com/awesomized/libmemcached/commit/48dcc61a
- https://github.com/awesomized/libmemcached/releases/tag/1.1.4
- https://github.com/awesomized/libmemcached/security/advisories/GHSA-wwmh-39wj-fx59
- https://github.com/php-memcached-dev/php-memcached/issues/531