Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-96915.json
JSON Data
https://api.test.osv.dev/v1/vulns/AZL-96915
Upstream
Published
2026-08-20T18:16:35Z
Modified
2026-09-20T05:32:18Z
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 evbuffer_add_buffer_reference processes an output buffer whose out_total_len is zero. evbuffer_free_all_chains frees the initial empty chain without resetting outbuf->first, outbuf->last, or outbuf->last_with_datap, and APPEND_CHAIN_MULTICAST 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
0 Unknown 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"