CVE-2021-36976
MEDIUM
MEDIUM
Priority: 0.18
BB Relevance:
64/100
Published: 2021-07-20
Modified: 2026-11-02
First seen: 2026-11-02
Status: active
Attack Surface
Network
Low Complexity
No Auth
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
Required
S:
Unchanged
C:
None
I:
None
A:
High
Description
libarchive 3.4.1 through 3.5.1 has a use-after-free in copy_string (called from do_uncompress_block and process_block).
Weakness Classification (1)
Affected Software (9)
| Vendor | Product | Version |
|---|---|---|
| apple | ipados | < 15.4 |
| apple | iphone_os | < 15.4 |
| apple | macos | < 12.3 |
| apple | watchos | < 8.5 |
| fedoraproject | fedora | 35 |
| libarchive | libarchive | 3.4.1 – 3.5.2 |
| n/a | n/a | n/a |
| splunk | universal_forwarder | 8.2.0 – 8.2.12 |
| splunk | universal_forwarder | 9.1.0 |
References & Advisories (11)
x_refsource_MISC
x_refsource_MISC
x_refsource_CONFIRM
x_refsource_CONFIRM
x_refsource_CONFIRM
vendor-advisory
x_refsource_GENTOO
vendor-advisory
x_refsource_FEDORA
mailing-list
x_refsource_FULLDISC
mailing-list
x_refsource_FULLDISC
mailing-list
x_refsource_FULLDISC