Out-of-bounds Read Affecting libcurl package, versions <0:7.61.1-9.amzn2.0.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-AMZN2-LIBCURL-1668982
- published27 Sept 2021
- disclosed6 Feb 2019
Introduced: 6 Feb 2019
CVE-2019-3823 (opens in a new tab)How to fix?
Upgrade Amazon-Linux:2 libcurl to version 0:7.61.1-9.amzn2.0.1 or higher.
This issue was patched in ALAS2-2019-1162.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libcurl package and not the libcurl package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2 relevant fixed versions and status.
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.
References
- http://www.securityfocus.com/bid/106950
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3823
- https://cert-portal.siemens.com/productcert/pdf/ssa-936080.pdf
- https://security.netapp.com/advisory/ntap-20190315-0001/
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3823
- https://www.debian.org/security/2019/dsa-4386
- https://security.gentoo.org/glsa/201903-03
- https://curl.haxx.se/docs/CVE-2019-3823.html
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
- https://lists.apache.org/thread.html/8338a0f605bdbb3a6098bb76f666a95fc2b2f53f37fa1ecc89f1146f@%3Cdevnull.infra.apache.org%3E
- https://access.redhat.com/errata/RHSA-2019:3701
- https://usn.ubuntu.com/3882-1/
- https://lists.apache.org/thread.html/8338a0f605bdbb3a6098bb76f666a95fc2b2f53f37fa1ecc89f1146f%40%3Cdevnull.infra.apache.org%3E