Low severity3.5NVD Advisory· Published Jul 24, 2023· Updated Jun 17, 2026
CVE-2023-3748
CVE-2023-3748
Description
A flaw was found in FRRouting when parsing certain babeld unicast hello messages that are intended to be ignored. This issue may allow an attacker to send specially crafted hello messages with the unicast flag set, the interval field set to 0, or any TLV that contains a sub-TLV with the Mandatory flag set to enter an infinite loop and cause a denial of service.
AI Insight
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Affected products
9cpe:/o:redhat:enterprise_linux:8+ 1 more
- cpe:/o:redhat:enterprise_linux:8
- cpe:/o:redhat:enterprise_linux:9
- osv-coords5 versionspkg:rpm/opensuse/frr&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/frr&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/frr&distro=openSUSE%20Tumbleweedpkg:rpm/suse/frr&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP5pkg:rpm/suse/frr&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP6
< 8.4-150500.4.8.1+ 4 more
- (no CPE)range: < 8.4-150500.4.8.1
- (no CPE)range: < 8.5.6-150500.4.30.1
- (no CPE)range: < 8.4-5.1
- (no CPE)range: < 8.4-150500.4.8.1
- (no CPE)range: < 8.5.6-150500.4.30.1
- Fedora/Fedorav5
Patches
Vulnerability mechanics
References
2- access.redhat.com/security/cve/CVE-2023-3748nvdThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
News mentions
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