CVE-2021-3518 @ Library
Status
new
Priority
2.64
Match score
4.0
Risk
MemCorrupt
Remote
priv:user
CVSS
8.8 HIGH
Reason
cpe: libxml2; pkgs: libxml2; version: in-range: libxml2-2.9.4+dfsg1-2.2+deb9u7; risk:memory_corruption
Created
2026-10-15T10:20:41Z
Updated
2026-10-20T10:18:50Z
Package interrogation (copy)
Run on the host — click to copy a command. Debian/apt
| Package | Commands |
|---|---|
| libxml2-2.9.4+dfsg1-2.2+deb9u7 |
Inventory lookup
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Suggestions: libxml2
Same product CVEs in your queue
Other open tickets that look like the same product. Closed tickets are omitted unless they are already pegged to this CVE.
| CVE | CVSS | KEV | Systems | Status | Matched | Already related | |
|---|---|---|---|---|---|---|---|
| CVE-2021-3517 | 8.6 | Archive, Janus, Library, Saiph, morris … | new | libxml2 | — | ||
| CVE-2022-40304 | 7.8 | Archive, Janus, Library, Saiph, morris … | new | libxml2 | — | ||
| CVE-2024-34459 | 7.5 | Archive, Janus, Library, Saiph, morris … | new | libxml2 | — | ||
| CVE-2022-23308 | 7.5 | Archive, Janus, Library, Saiph, morris … | new | libxml2 | — | ||
| CVE-2022-40303 | 7.5 | Archive, Janus, Library, Saiph, morris … | new | libxml2 | — | ||
| CVE-2024-25062 | 7.5 | Archive, Janus, Library, Saiph, morris … | new | libxml2 | — |
Related CVE (same fix)
Point this ticket’s CVE at a higher-priority / same-fix primary so you only triage one.
Host OS / kernel
OS
Debian GNU/Linux 9 (stretch)
(9)
· debian
Arch
x86_64
kernel_release
uname -r → 4.9.0-19-amd64kernel_version
uname -v → #1 SMP Debian 4.9.320-2 (2022-06-30)For Linux kernel CVEs, kernel_version (Debian packaging / build string) often decides fixed vs not; kernel_release is used for upstream NVD range compares.
Same CVE on other hosts
Open the ticket for this CVE on another system.
| System | Status | Priority | Updated | |
|---|---|---|---|---|
| morris | new | 8.8 | 2026-10-20T10:18:50Z | Open |
| mufasa | new | 8.8 | 2026-10-20T10:18:50Z | Open |
| Archive | new | 1.32 | 2026-10-20T10:18:50Z | Open |
| Janus | new | 1.32 | 2026-10-20T10:18:50Z | Open |
| Saiph | new | 1.32 | 2026-10-20T10:18:50Z | Open |
Description
There's a flaw in libxml2 in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by an application linked with libxml2 could trigger a use-after-free. The greatest impact from this flaw is to confidentiality, integrity, and availability.
Update status
Add note only
References
- http://seclists.org/fulldisclosure/2021/Jul/54
- http://seclists.org/fulldisclosure/2021/Jul/55
- http://seclists.org/fulldisclosure/2021/Jul/58
- http://seclists.org/fulldisclosure/2021/Jul/59
- https://bugzilla.redhat.com/show_bug.cgi?id=1954242
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2021/05/msg00008.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV/
- https://security.gentoo.org/glsa/202107-05
- https://security.netapp.com/advisory/ntap-20210625-0002/
- https://support.apple.com/kb/HT212601
- https://support.apple.com/kb/HT212602
- https://support.apple.com/kb/HT212604
NVD: CVE-2021-3518