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CVE-2019-3823
libcurl versions from 7.34.0 to before 7.64.0 are vulnerable to a heap out-of-bounds read in the code handling the end-of-response for…
Medium4.3EPSS 4.1%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
libcurl versions from 7.34.0 to before 7.64.0 are vulnerable to a heap out-of-bounds read in the code handling the end-of-response for SMTP. If the buffer passed to `smtp_endofresp()` isn't NUL terminated and contains no character ending the parsed number, and `len` is set to 5, then the `strtol()` call reads beyond the allocated buffer. The read contents will not be returned to the caller.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.0 | Medium4.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 4.1% · top 9.2% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Weakness
Affected products
- affected 7.64.0
References (12)
- GLSA-201903-03 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- DSA-4386 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3823 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://curl.haxx.se/docs/CVE-2019-3823.html (opens in a new tab)x_refsource_MISCx_transferred
- https://security.netapp.com/advisory/ntap-20190315-0001/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-3882-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 106950 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- [infra-devnull] 20190404 [GitHub] [incubator-openwhisk-runtime-ballerina] falkzoll commented on issue #15: Update to new base image jdk8u202-b08_openj9-0.12.1. (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html (opens in a new tab)x_refsource_MISCx_transferred
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html (opens in a new tab)x_refsource_MISCx_transferred
- RHSA-2019:3701 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://cert-portal.siemens.com/productcert/pdf/ssa-936080.pdf (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2019-3823)Record last updated .