Your message dated Tue, 14 Jul 2026 13:05:38 +0200
with message-id <[email protected]>
and subject line libyang: CVE-2026-44673
has caused the Debian Bug report #1137026,
regarding libyang: CVE-2026-44673
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1137026: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1137026
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--- Begin Message ---
Source: libyang
Version: 3.13.6-1
Severity: important
Tags: security upstream
X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi,
The following vulnerability was published for libyang.
CVE-2026-44673[0]:
| libyang is a YANG data modeling language library. Prior to SO
| 5.2.15, lyb_read_string() in src/parser_lyb.c contains an integer
| overflow that results in a heap buffer overflow when parsing a
| maliciously crafted LYB binary blob. An attacker who can supply LYB
| data to any libyang consumer (NETCONF server, sysrepo, etc.) can
| trigger a crash or potential heap corruption. This vulnerability is
| fixed in SO 5.2.15.
If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.
For further information see:
[0] https://security-tracker.debian.org/tracker/CVE-2026-44673
https://www.cve.org/CVERecord?id=CVE-2026-44673
[1] https://github.com/CESNET/libyang/security/advisories/GHSA-vw2p-pq79-92xh
Please adjust the affected versions in the BTS as needed.
Regards,
Salvatore
--- End Message ---
--- Begin Message ---
Version: libyang/5.4.1-1
--- End Message ---
