CVE catalog
CVE-2019-3822
curl: CVE-2019-3822
- Severity
- High · CVSS 8.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 12.87% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | curl | sid | 8.23.0-1 | fixed |
| Debian | curl | forky | 8.22.0-1 | fixed |
| Debian | curl | trixie | 8.14.1-2+deb13u5 | fixed |
| Debian | curl | trixie-security | 8.14.1-2+deb13u7 | fixed |
| Debian | curl | bookworm | 7.88.1-10+deb12u15 | fixed |
| Debian | curl | bookworm-security | 7.88.1-10+deb12u5 | fixed |
| Alpine | curl | 3.10 | 7.64.0-r0 | fixed |
| Alpine | curl | 3.11 | 7.64.0-r0 | fixed |
| Alpine | curl | 3.12 | 7.64.0-r0 | fixed |
| Alpine | curl | 3.13 | 7.64.0-r0 | fixed |
| Alpine | curl | 3.14 | 7.64.0-r0 | fixed |
| Alpine | curl | 3.15 | 7.64.0-r0 | fixed |
| Alpine | curl | 3.16 | 7.64.0-r0 | fixed |
| Alpine | curl | 3.17 | 7.64.0-r0 | fixed |
| Alpine | curl | 3.18 | 7.64.0-r0 | fixed |
| Alpine | curl | 3.19 | 7.64.0-r0 | fixed |
| Alpine | curl | 3.20 | 7.64.0-r0 | fixed |
| Alpine | curl | 3.21 | 7.64.0-r0 | fixed |
| Alpine | curl | 3.22 | 7.64.0-r0 | fixed |
| Alpine | curl | 3.23 | 7.64.0-r0 | fixed |
| Alpine | curl | 3.24 | 7.64.0-r0 | fixed |
| Alpine | curl | 3.6 | 7.61.1-r2 | fixed |
| Alpine | curl | 3.7 | 7.61.1-r2 | fixed |
| Alpine | curl | 3.8 | 7.61.1-r2 | fixed |
| Alpine | curl | 3.9 | 7.64.0-r0 | fixed |
| Ubuntu | curl | 16.04 | 7.43.0-1ubuntu2 | vulnerable |
| Ubuntu | curl | 16.04 | 7.45.0-1ubuntu1 | vulnerable |
| Ubuntu | curl | 16.04 | 7.46.0-1ubuntu1 | vulnerable |
| Ubuntu | curl | 16.04 | 7.47.0-1ubuntu1 | vulnerable |
| Ubuntu | curl | 16.04 | 7.47.0-1ubuntu2 | vulnerable |
| Ubuntu | curl | 16.04 | 7.47.0-1ubuntu2.1 | vulnerable |
| Ubuntu | curl | 16.04 | 7.47.0-1ubuntu2.2 | vulnerable |
| Ubuntu | curl | 16.04 | 7.47.0-1ubuntu2.3 | vulnerable |
| Ubuntu | curl | 16.04 | 7.47.0-1ubuntu2.4 | vulnerable |
| Ubuntu | curl | 16.04 | 7.47.0-1ubuntu2.5 | vulnerable |
| Ubuntu | curl | 16.04 | 7.47.0-1ubuntu2.6 | vulnerable |
| Ubuntu | curl | 16.04 | 7.47.0-1ubuntu2.7 | vulnerable |
| Ubuntu | curl | 16.04 | 7.47.0-1ubuntu2.8 | vulnerable |
| Ubuntu | curl | 16.04 | 7.47.0-1ubuntu2.9 | vulnerable |
| Ubuntu | curl | 16.04 | 7.47.0-1ubuntu2.11 | vulnerable |
| Ubuntu | curl | 16.04 | 7.47.0-1ubuntu2.12 | fixed |
| Ubuntu | curl | 18.04 | 7.55.1-1ubuntu2 | vulnerable |
| Ubuntu | curl | 18.04 | 7.55.1-1ubuntu2.1 | vulnerable |
| Ubuntu | curl | 18.04 | 7.57.0-1ubuntu1 | vulnerable |
| Ubuntu | curl | 18.04 | 7.58.0-2ubuntu1 | vulnerable |
| Ubuntu | curl | 18.04 | 7.58.0-2ubuntu2 | vulnerable |
| Ubuntu | curl | 18.04 | 7.58.0-2ubuntu3 | vulnerable |
| Ubuntu | curl | 18.04 | 7.58.0-2ubuntu3.1 | vulnerable |
| Ubuntu | curl | 18.04 | 7.58.0-2ubuntu3.2 | vulnerable |
| Ubuntu | curl | 18.04 | 7.58.0-2ubuntu3.3 | vulnerable |
| Ubuntu | curl | 18.04 | 7.58.0-2ubuntu3.5 | vulnerable |
| Ubuntu | curl | 18.04 | 7.58.0-2ubuntu3.6 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | curl | source | sid | 7.64.0-1 | not yet assigned | Not reported | Not reported |
| Debian | curl | source | forky | 7.64.0-1 | not yet assigned | Not reported | Not reported |
| Debian | curl | source | trixie | 7.64.0-1 | not yet assigned | Not reported | Not reported |
| Debian | curl | source | bookworm | 7.64.0-1 | not yet assigned | Not reported | Not reported |
| Alpine | curl | apk | 3.10 | 7.64.0-r0 | Not reported | ALPINE-CVE-2019-3822 | Not reported |
| Alpine | curl | apk | 3.11 | 7.64.0-r0 | Not reported | ALPINE-CVE-2019-3822 | Not reported |
| Alpine | curl | apk | 3.12 | 7.64.0-r0 | Not reported | ALPINE-CVE-2019-3822 | Not reported |
| Alpine | curl | apk | 3.13 | 7.64.0-r0 | Not reported | ALPINE-CVE-2019-3822 | Not reported |
| Alpine | curl | apk | 3.14 | 7.64.0-r0 | Not reported | ALPINE-CVE-2019-3822 | Not reported |
| Alpine | curl | apk | 3.15 | 7.64.0-r0 | Not reported | ALPINE-CVE-2019-3822 | Not reported |
| Alpine | curl | apk | 3.16 | 7.64.0-r0 | Not reported | ALPINE-CVE-2019-3822 | Not reported |
| Alpine | curl | apk | 3.17 | 7.64.0-r0 | Not reported | ALPINE-CVE-2019-3822 | Not reported |
| Alpine | curl | apk | 3.18 | 7.64.0-r0 | Not reported | ALPINE-CVE-2019-3822 | Not reported |
| Alpine | curl | apk | 3.19 | 7.64.0-r0 | Not reported | ALPINE-CVE-2019-3822 | Not reported |
| Alpine | curl | apk | 3.20 | 7.64.0-r0 | Not reported | ALPINE-CVE-2019-3822 | Not reported |
| Alpine | curl | apk | 3.21 | 7.64.0-r0 | Not reported | ALPINE-CVE-2019-3822 | Not reported |
| Alpine | curl | apk | 3.22 | 7.64.0-r0 | Not reported | ALPINE-CVE-2019-3822 | Not reported |
| Alpine | curl | apk | 3.23 | 7.64.0-r0 | Not reported | ALPINE-CVE-2019-3822 | Not reported |
| Alpine | curl | apk | 3.24 | 7.64.0-r0 | Not reported | ALPINE-CVE-2019-3822 | Not reported |
| Alpine | curl | apk | 3.6 | 7.61.1-r2 | Not reported | ALPINE-CVE-2019-3822 | Not reported |
| Alpine | curl | apk | 3.7 | 7.61.1-r2 | Not reported | ALPINE-CVE-2019-3822 | Not reported |
| Alpine | curl | apk | 3.8 | 7.61.1-r2 | Not reported | ALPINE-CVE-2019-3822 | Not reported |
| Alpine | curl | apk | 3.9 | 7.64.0-r0 | Not reported | ALPINE-CVE-2019-3822 | Not reported |
| Ubuntu | curl | deb | 16.04 | 7.47.0-1ubuntu2.12 | Not reported | UBUNTU-CVE-2019-3822 | Not reported |
| Ubuntu | curl | deb | 18.04 | 7.58.0-2ubuntu3.6 | Not reported | UBUNTU-CVE-2019-3822 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [curl]Unknown
Details (6)
7.88.1-10+deb12u15· amd64 · bookwormFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u15· arm64 · bookwormFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
8.14.1-2+deb13u2~bpo13+1· amd64 · bookworm-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
8.14.1-2+deb13u2~bpo13+1· arm64 · bookworm-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u5· amd64 · bookworm-securityFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u5· arm64 · bookworm-securityFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
- [libcurl3-gnutls]Unknown
Source package: [curl]
Details (6)
7.88.1-10+deb12u15· amd64 · bookwormFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u15· arm64 · bookwormFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
8.14.1-2+deb13u2~bpo13+1· amd64 · bookworm-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
8.14.1-2+deb13u2~bpo13+1· arm64 · bookworm-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u5· amd64 · bookworm-securityFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u5· arm64 · bookworm-securityFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
- [libcurl3-nss]Unknown
Source package: [curl]
Details (4)
7.88.1-10+deb12u15· amd64 · bookwormFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u15· arm64 · bookwormFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u5· amd64 · bookworm-securityFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u5· arm64 · bookworm-securityFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
- [libcurl4]Unknown
Source package: [curl]
Details (6)
7.88.1-10+deb12u15· amd64 · bookwormFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u15· arm64 · bookwormFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
8.14.1-2+deb13u2~bpo13+1· amd64 · bookworm-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
8.14.1-2+deb13u2~bpo13+1· arm64 · bookworm-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u5· amd64 · bookworm-securityFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u5· arm64 · bookworm-securityFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
- [libcurl4-doc]Unknown
Source package: [curl]
Details (6)
7.88.1-10+deb12u15· all · bookwormFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u15· all · bookwormFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
8.14.1-2+deb13u2~bpo13+1· all · bookworm-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
8.14.1-2+deb13u2~bpo13+1· all · bookworm-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u5· all · bookworm-securityFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u5· all · bookworm-securityFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
- [libcurl4-gnutls-dev]Unknown
Source package: [curl]
Details (6)
7.88.1-10+deb12u15· amd64 · bookwormFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u15· arm64 · bookwormFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
8.14.1-2+deb13u2~bpo13+1· amd64 · bookworm-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
8.14.1-2+deb13u2~bpo13+1· arm64 · bookworm-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u5· amd64 · bookworm-securityFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u5· arm64 · bookworm-securityFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
- [libcurl4-nss-dev]Unknown
Source package: [curl]
Details (4)
7.88.1-10+deb12u15· amd64 · bookwormFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u15· arm64 · bookwormFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u5· amd64 · bookworm-securityFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u5· arm64 · bookworm-securityFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
- [libcurl4-openssl-dev]Unknown
Source package: [curl]
Details (6)
7.88.1-10+deb12u15· amd64 · bookwormFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u15· arm64 · bookwormFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
8.14.1-2+deb13u2~bpo13+1· amd64 · bookworm-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
8.14.1-2+deb13u2~bpo13+1· arm64 · bookworm-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u5· amd64 · bookworm-securityFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
7.88.1-10+deb12u5· arm64 · bookworm-securityFixed · Fixed:
7.64.0-1dsa · curl · debian · bookworm; dsa · curl · debian · 12
[Debian 13 (Trixie)]
- [curl]Unknown
Details (5)
8.14.1-2+deb13u4· amd64 · trixieFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.14.1-2+deb13u4· arm64 · trixieFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.21.0-2~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.21.0-2~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.14.1-2+deb13u7· amd64 · trixie-securityFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
- [libcurl3t64-gnutls]Unknown
Source package: [curl]
Details (5)
8.14.1-2+deb13u4· amd64 · trixieFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.14.1-2+deb13u4· arm64 · trixieFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.21.0-2~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.21.0-2~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.14.1-2+deb13u7· amd64 · trixie-securityFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
- [libcurl4-doc]Unknown
Source package: [curl]
Details (5)
8.14.1-2+deb13u4· all · trixieFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.14.1-2+deb13u4· all · trixieFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.21.0-2~bpo13+1· all · trixie-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.21.0-2~bpo13+1· all · trixie-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.14.1-2+deb13u7· all · trixie-securityFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
- [libcurl4-gnutls]Unknown
Source package: [curl]
Details (2)
8.21.0-2~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.21.0-2~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
- [libcurl4-gnutls-dev]Unknown
Source package: [curl]
Details (5)
8.14.1-2+deb13u4· amd64 · trixieFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.14.1-2+deb13u4· arm64 · trixieFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.21.0-2~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.21.0-2~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.14.1-2+deb13u7· amd64 · trixie-securityFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
- [libcurl4-openssl-dev]Unknown
Source package: [curl]
Details (5)
8.14.1-2+deb13u4· amd64 · trixieFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.14.1-2+deb13u4· arm64 · trixieFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.21.0-2~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.21.0-2~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.14.1-2+deb13u7· amd64 · trixie-securityFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
- [libcurl4t64]Unknown
Source package: [curl]
Details (5)
8.14.1-2+deb13u4· amd64 · trixieFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.14.1-2+deb13u4· arm64 · trixieFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.21.0-2~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.21.0-2~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
8.14.1-2+deb13u7· amd64 · trixie-securityFixed · Fixed:
7.64.0-1dsa · curl · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2019_3701.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2019-3822]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2019-3822]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2019-3822]
- [https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2019/icsa-19-099-04.json]
- [https://security-tracker.debian.org/tracker/CVE-2019-3822]
- [https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-3822.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2020/wid-sec-w-2026-4026.json]
[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]