Medium severity5.8NVD Advisory· Published Dec 16, 2019· Updated Jul 28, 2026
CVE-2019-16779
CVE-2019-16779
Description
In RubyGem excon before 0.71.0, there was a race condition around persistent connections, where a connection which is interrupted (such as by a timeout) would leave data on the socket. Subsequent requests would then read this data, returning content from the previous response. The race condition window appears to be short, and it would be difficult to purposefully exploit this.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
exconRubyGems | < 0.71.0 | 0.71.0 |
Affected products
9- cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:*
- ghsa-coords4 versionspkg:gem/exconpkg:rpm/opensuse/rubygem-excon&distro=openSUSE%20Leap%2015.1pkg:rpm/suse/rubygem-excon&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Containers%2012pkg:rpm/suse/rubygem-excon&distro=SUSE%20Package%20Hub%2015%20SP1
< 0.71.0+ 3 more
- (no CPE)range: < 0.71.0
- (no CPE)range: < 0.59.0-lp151.3.3.1
- (no CPE)range: < 0.52.0-12.3.8
- (no CPE)range: < 0.59.0-bp151.4.3.1
Patches
Vulnerability mechanics
References
8- github.com/excon/excon/commit/ccb57d7a422f020dc74f1de4e8fb505ab46d8a29nvdPatchWEB
- lists.opensuse.org/opensuse-security-announce/2020-01/msg00021.htmlnvdThird Party AdvisoryWEB
- lists.opensuse.org/opensuse-security-announce/2020-01/msg00062.htmlnvdThird Party AdvisoryWEB
- github.com/advisories/GHSA-q58g-455p-8vw9ghsaADVISORY
- github.com/excon/excon/security/advisories/GHSA-q58g-455p-8vw9nvdVendor AdvisoryWEB
- lists.debian.org/debian-lts-announce/2020/01/msg00015.htmlnvdMailing ListThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2019-16779ghsaADVISORY
- github.com/rubysec/ruby-advisory-db/blob/master/gems/excon/CVE-2019-16779.ymlghsaWEB
News mentions
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