CVE-2019-16239
9.8
CRITICAL · CVSS 3.1 · EPSS 3.4% (pctl 89)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
process_http_response in OpenConnect before 8.05 has a Buffer Overflow when a malicious server uses HTTP chunked encoding with crafted chunk sizes.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 3.45% — more likely to be exploited than 89% of all CVEs |
| Weakness | CWE-120 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2019-09-17 |
| Last modified | 2026-06-17 |
Affected (5)
| Vendor | Product |
|---|---|
| canonical | ubuntu linux |
| debian | debian linux |
| fedoraproject | fedora |
| infradead | openconnect |
| opensuse | leap |
References
- http://lists.infradead.org/pipermail/openconnect-devel/2019-September/005412.html
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00060.html
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00061.html
- https://lists.debian.org/debian-lts-announce/2019/10/msg00003.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FX56KYWC7X4ETV4P6HGJC7GZUEBITBBS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HDMZGNBLZZKAGBI2PNXYWWKLD2LXKFH6/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WI7ZENFAWCHF2RU4NHPL2CU4WGZ4BNDJ/
- https://seclists.org/bugtraq/2020/Jan/31
- https://t2.fi/schedule/2019/
- https://usn.ubuntu.com/4565-1/
- https://www.debian.org/security/2020/dsa-4607
- http://lists.infradead.org/pipermail/openconnect-devel/2019-September/005412.html
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00060.html
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00061.html
- https://lists.debian.org/debian-lts-announce/2019/10/msg00003.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FX56KYWC7X4ETV4P6HGJC7GZUEBITBBS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HDMZGNBLZZKAGBI2PNXYWWKLD2LXKFH6/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WI7ZENFAWCHF2RU4NHPL2CU4WGZ4BNDJ/
- https://seclists.org/bugtraq/2020/Jan/31
- https://t2.fi/schedule/2019/
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