Vulnerability Details : CVE-2021-36976
libarchive 3.4.1 through 3.5.1 has a use-after-free in copy_string (called from do_uncompress_block and process_block).
Vulnerability category: Memory Corruption
Products affected by CVE-2021-36976
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:*
- cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:*
- cpe:2.3:a:splunk:universal_forwarder:9.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:libarchive:libarchive:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-36976
0.43%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 74 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-36976
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2021-36976
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-36976
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SE5NJQNM22ZE5Z55LPAGCUHSBQZBKMKC/
[SECURITY] Fedora 35 Update: libarchive-3.5.3-1.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://support.apple.com/kb/HT213183
About the security content of macOS Monterey 12.3 - Apple SupportThird Party Advisory
-
https://support.apple.com/kb/HT213193
About the security content of watchOS 8.5 - Apple SupportThird Party Advisory
-
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32375
32375 - libarchive:libarchive_fuzzer: Heap-use-after-free in copy_string - oss-fuzzIssue Tracking;Third Party Advisory
-
http://seclists.org/fulldisclosure/2022/Mar/27
Full Disclosure: APPLE-SA-2022-03-14-1 iOS 15.4 and iPadOS 15.4Mailing List;Third Party Advisory
-
http://seclists.org/fulldisclosure/2022/Mar/29
Full Disclosure: APPLE-SA-2022-03-14-4 macOS Monterey 12.3Mailing List;Third Party Advisory
-
https://support.apple.com/kb/HT213182
About the security content of iOS 15.4 and iPadOS 15.4 - Apple SupportThird Party Advisory
-
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libarchive/OSV-2021-557.yaml
oss-fuzz-vulns/OSV-2021-557.yaml at main · google/oss-fuzz-vulns · GitHubThird Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SE5NJQNM22ZE5Z55LPAGCUHSBQZBKMKC/
[SECURITY] Fedora 35 Update: libarchive-3.5.3-1.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://security.gentoo.org/glsa/202208-26
libarchive: Multiple Vulnerabilities (GLSA 202208-26) — Gentoo securityThird Party Advisory
-
http://seclists.org/fulldisclosure/2022/Mar/28
Full Disclosure: APPLE-SA-2022-03-14-2 watchOS 8.5Mailing List;Third Party Advisory
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