CVE-2019-3822
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
22- osv-coords20 versionspkg:rpm/opensuse/curl&distro=openSUSE%20Leap%2015.0pkg:rpm/opensuse/curl&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/curl-mini&distro=openSUSE%20Leap%2015.0pkg:rpm/suse/curl&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4pkg:rpm/suse/curl&distro=SUSE%20OpenStack%20Cloud%207
< 7.60.0-lp150.2.18.1+ 19 more
- (no CPE)range: < 7.60.0-lp150.2.18.1
- (no CPE)range: < 7.79.1-1.1
- (no CPE)range: < 7.60.0-lp150.2.18.1
- (no CPE)range: < 7.37.0-37.34.1
- (no CPE)range: < 7.37.0-37.34.1
- (no CPE)range: < 7.60.0-4.3.1
- (no CPE)range: < 7.60.0-3.17.1
- (no CPE)range: < 7.37.0-37.34.1
- (no CPE)range: < 7.37.0-37.34.1
- (no CPE)range: < 7.37.0-37.34.1
- (no CPE)range: < 7.37.0-37.34.1
- (no CPE)range: < 7.60.0-4.3.1
- (no CPE)range: < 7.37.0-37.34.1
- (no CPE)range: < 7.37.0-37.34.1
- (no CPE)range: < 7.37.0-37.34.1
- (no CPE)range: < 7.37.0-37.34.1
- (no CPE)range: < 7.60.0-4.3.1
- (no CPE)range: < 7.37.0-37.34.1
- (no CPE)range: < 7.60.0-4.3.1
- (no CPE)range: < 7.37.0-37.34.1
- The curl Project/curlv5Range: 7.64.0
Patches
Vulnerability mechanics
References
15- curl.haxx.se/docs/CVE-2019-3822.htmlnvdPatchVendor Advisory
- security.netapp.com/advisory/ntap-20190315-0001/nvdPatchThird Party Advisory
- www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlnvdPatchThird Party Advisory
- www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.htmlnvdPatchThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdExploitIssue TrackingPatchThird Party Advisory
- www.securityfocus.com/bid/106950nvdThird Party AdvisoryVDB Entry
- access.redhat.com/errata/RHSA-2019:3701nvdThird Party Advisory
- cert-portal.siemens.com/productcert/pdf/ssa-436177.pdfnvdThird Party Advisory
- security.gentoo.org/glsa/201903-03nvdThird Party Advisory
- security.netapp.com/advisory/ntap-20190719-0004/nvdThird Party Advisory
- support.f5.com/csp/article/K84141449nvdThird Party Advisory
- usn.ubuntu.com/3882-1/nvdThird Party Advisory
- www.debian.org/security/2019/dsa-4386nvdThird Party Advisory
- lists.apache.org/thread.html/8338a0f605bdbb3a6098bb76f666a95fc2b2f53f37fa1ecc89f1146f%40%3Cdevnull.infra.apache.org%3Envd
- support.f5.com/csp/article/K84141449nvd
News mentions
0No linked articles in our index yet.