Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-96915.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-96915
Upstream
Published
2026-08-20T18:16:35Z
Modified
2026-08-30T05:24:52Z
Summary
CVE-2026-63381 affecting package libtevent 0.14.1-1
Details

Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent has a use-after-free in buffer.c when evbufferaddbufferreference processes an output buffer whose outtotallen is zero. evbufferfreeallchains frees the initial empty chain without resetting outbuf->first, outbuf->last, or outbuf->lastwithdatap, and APPENDCHAINMULTICAST subsequently dereferences the dangling chain pointer. A caller that can drive this buffer state can cause memory corruption or a process crash. This issue is fixed in versions 2.1.13 and 2.2.2-alpha.

References

Affected packages

Azure Linux:3 / libtevent

Package

Name
libtevent
Purl
pkg:rpm/azure-linux/libtevent

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Last affected
0.14.1-1

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-96915.json"