critical
CVE-2019-3822
curl: NTLMv2 type-3 header stack buffer overflow
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.
Severity by source
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat5.3CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Trivy's own label is CRITICAL. Rated critical by NVD, Photon OS. Rated lower by Red Hat (medium), Amazon (medium), Oracle (medium), Ubuntu (medium).
Description
libcurl versions from 7.36.0 to before 7.64.0 are vulnerable to a stack-based buffer overflow. The function creating an outgoing NTLM type-3 header (`lib/vauth/ntlm.c:Curl_auth_create_ntlm_type3_message()`), generates the request HTTP header contents based on previously received data. The check that exists to prevent the local buffer from getting overflowed is implemented wrongly (using unsigned math) and as such it does not prevent the overflow from happening. This output data can grow larger than the local buffer if very large 'nt response' data is extracted from a previous NTLMv2 header provided by the malicious or broken HTTP server. Such a 'large value' needs to be around 1000 bytes or more. The actual payload data copied to the target buffer comes from the NTLMv2 type-2 response header.
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| Photon OS 1.0 | curl | 7.59.0-6.ph1 |
| Photon OS 2.0 | curl | 7.59.0-6.ph2 |
| Photon OS 3.0 | cmake, curl | 3.13.5-2.ph3 and 1 more |
| alpine 3.10 | curl | 7.64.0-r0 |
| alpine 3.11 | curl | 7.64.0-r0 |
| alpine 3.12 | curl | 7.64.0-r0 |
| alpine 3.13 | curl | 7.64.0-r0 |
| alpine 3.14 | curl | 7.64.0-r0 |
| alpine 3.15 | curl | 7.64.0-r0 |
| alpine 3.16 | curl | 7.64.0-r0 |
| alpine 3.17 | curl | 7.64.0-r0 |
| alpine 3.18 | curl | 7.64.0-r0 |
Show all 66 entries from 42 sources
| Source | Package | Fixed in |
|---|---|---|
| Photon OS 1.0 | curl | 7.59.0-6.ph1 |
| Photon OS 2.0 | curl | 7.59.0-6.ph2 |
| Photon OS 3.0 | cmake | 3.13.5-2.ph3 |
| Photon OS 3.0 | curl | 7.61.1-3.ph3 |
| alpine 3.10 | curl | 7.64.0-r0 |
| alpine 3.11 | curl | 7.64.0-r0 |
| alpine 3.12 | curl | 7.64.0-r0 |
| alpine 3.13 | curl | 7.64.0-r0 |
| alpine 3.14 | curl | 7.64.0-r0 |
| alpine 3.15 | curl | 7.64.0-r0 |
| alpine 3.16 | curl | 7.64.0-r0 |
| alpine 3.17 | curl | 7.64.0-r0 |
| alpine 3.18 | curl | 7.64.0-r0 |
| alpine 3.19 | curl | 7.64.0-r0 |
| alpine 3.20 | curl | 7.64.0-r0 |
| alpine 3.21 | curl | 7.64.0-r0 |
| alpine 3.22 | curl | 7.64.0-r0 |
| alpine 3.23 | curl | 7.64.0-r0 |
| alpine 3.24 | curl | 7.64.0-r0 |
| alpine 3.6 | curl | 7.61.1-r2 |
| alpine 3.7 | curl | 7.61.1-r2 |
| alpine 3.8 | curl | 7.61.1-r2 |
| alpine 3.9 | curl | 7.64.0-r0 |
| alpine edge | curl | 7.64.0-r0 |
| amazon linux 1 | mysql57 | 5.7.27-1.13.amzn1 |
| amazon linux 1 | mysql57-common | 5.7.27-1.13.amzn1 |
| amazon linux 1 | mysql57-debuginfo | 5.7.27-1.13.amzn1 |
| amazon linux 1 | mysql57-devel | 5.7.27-1.13.amzn1 |
| amazon linux 1 | mysql57-embedded | 5.7.27-1.13.amzn1 |
| amazon linux 1 | mysql57-embedded-devel | 5.7.27-1.13.amzn1 |
| amazon linux 1 | mysql57-errmsg | 5.7.27-1.13.amzn1 |
| amazon linux 1 | mysql57-libs | 5.7.27-1.13.amzn1 |
| amazon linux 1 | mysql57-server | 5.7.27-1.13.amzn1 |
| amazon linux 1 | mysql57-test | 5.7.27-1.13.amzn1 |
| amazon linux 2 | curl | 7.61.1-9.amzn2.0.1 |
| amazon linux 2 | curl-debuginfo | 7.61.1-9.amzn2.0.1 |
| amazon linux 2 | libcurl | 7.61.1-9.amzn2.0.1 |
| amazon linux 2 | libcurl-devel | 7.61.1-9.amzn2.0.1 |
| debian 11 | curl | 7.64.0-1 |
| debian 12 | curl | 7.64.0-1 |
| debian 13 | curl | 7.64.0-1 |
| debian 14 | curl | 7.64.0-1 |
| debian 8 | curl | 7.38.0-4+deb8u14 |
| debian 9 | curl | 7.52.1-5+deb9u9 |
| echo | curl | 7.64.0-1 |
| Oracle Linux 8 | curl | 7.61.1-11.el8 |
| Oracle Linux 8 | libcurl | 7.61.1-11.el8 |
| Oracle Linux 8 | libcurl-devel | 7.61.1-11.el8 |
| Oracle Linux 8 | libcurl-minimal | 7.61.1-11.el8 |
| Red Hat | httpd24-curl | no fix listed |
| Red Hat | httpd24-libcurl | no fix listed |
| Red Hat | httpd24-libcurl-devel | no fix listed |
| Red Hat | rh-dotnet21-curl | no fix listed |
| Red Hat | rh-dotnet21-libcurl | no fix listed |
| Red Hat | rh-dotnet21-libcurl-devel | no fix listed |
| Red Hat | rh-dotnet22-curl | no fix listed |
| Red Hat | rh-dotnet22-libcurl | no fix listed |
| Red Hat | rh-dotnet22-libcurl-devel | no fix listed |
| root.io debian 11 | rootio-curl | 7.64.0-1 |
| root.io debian 12 | rootio-curl | 7.64.0-1 |
| root.io debian 13 | rootio-curl | 7.64.0-1 |
| ubuntu 16.04 | curl | 7.47.0-1ubuntu2.12 |
| ubuntu 16.04-ESM | curl | 7.47.0-1ubuntu2.12 |
| ubuntu 18.04 | curl | 7.58.0-2ubuntu3.6 |
| ubuntu 18.04-ESM | curl | 7.58.0-2ubuntu3.6 |
| ubuntu 18.10 | curl | 7.61.0-1ubuntu2.3 |
References
- http://www.securityfocus.com/bid/106950
- https://access.redhat.com/errata/RHSA-2019:3701
- https://access.redhat.com/security/cve/CVE-2019-3822
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3822
- https://cert-portal.siemens.com/productcert/pdf/ssa-436177.pdf
- https://curl.haxx.se/docs/CVE-2019-3822.html
- https://linux.oracle.com/cve/CVE-2019-3822.html
- https://linux.oracle.com/errata/ELSA-2019-3701.html
All 21 references
- https://lists.apache.org/thread.html/8338a0f605bdbb3a6098bb76f666a95fc2b2f53f37fa1ecc89f1146f@%3Cdevnull.infra.apache.org%3E
- https://nvd.nist.gov/vuln/detail/CVE-2019-3822
- https://security.gentoo.org/glsa/201903-03
- https://security.netapp.com/advisory/ntap-20190315-0001/
- https://security.netapp.com/advisory/ntap-20190719-0004/
- https://support.f5.com/csp/article/K84141449
- https://support.f5.com/csp/article/K84141449?utm_source=f5support&%3Butm_medium=RSS
- https://ubuntu.com/security/notices/USN-3882-1
- https://usn.ubuntu.com/3882-1/
- https://www.cve.org/CVERecord?id=CVE-2019-3822
- https://www.debian.org/security/2019/dsa-4386
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html