CVE-2020-23856

NameCVE-2020-23856
DescriptionUse-after-Free vulnerability in cflow 1.6 in the void call(char *name, int line) function at src/parser.c, which could cause a denial of service via the pointer variable caller->callee.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitylow
Debian Bugs988985

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
cflow (PTS)stretch1:1.4+dfsg1-3vulnerable
buster1:1.6-1vulnerable
bullseye1:1.6-4vulnerable
bookworm, sid1:1.7-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
cflowsource(unstable)1:1.6-6unimportant988985

Notes

https://lists.gnu.org/archive/html/bug-cflow/2020-07/msg00000.html
https://git.savannah.gnu.org/cgit/cflow.git/commit/?id=b9a7cd5e9d4efb54141dd0d11c319bb97a4600c6
Crash in CLI tool, no security impact

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