CVE-2024-23836
crafted traffic can cause denial of service
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 6.0.16 and 7.0.3, an attacker can craft traffic to cause Suricata to use far more CPU and memory for processing the traffic than needed, which can lead to extreme slow downs and denial of service. This vulnerability is patched in 6.0.16 or 7.0.3. Workarounds include disabling the affected protocol app-layer parser in the yaml and reducing the stream.reassembly.depth value helps reduce the severity of the issue.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used 7.5
crafted traffic can cause denial of service
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 6.0.16 and 7.0.3, an attacker can craft traffic to cause Suricata to use far more CPU and memory for processing the traffic than needed, which can lead to extreme slow downs and denial of service. This vulnerability is patched in 6.0.16 or 7.0.3. Workarounds include disabling the affected protocol app-layer parser in the yaml and reducing the stream.reassembly.depth value helps reduce the severity of the issue.
- Record
CVE-2024-23836- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-770
- Updated
- 2026-11-02
EUVDEUVD-2024-21278 7.5
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 6.0.16 and 7.0.3, an attacker can craft traffic to cause Suricata to use far more CPU and memory for processing the traffic than needed, which can lead to extreme slow downs and denial of service. This vulnerability is patched in 6.0.16 or 7.0.3. Workarounds include disabling the affected protocol app-layer parser in the yaml and reducing the stream.reassembly.depth value helps reduce the severity of the issue.
- Record
EUVD-2024-21278- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-03
NVD 7.5
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 6.0.16 and 7.0.3, an attacker can craft traffic to cause Suricata to use far more CPU and memory for processing the traffic than needed, which can lead to extreme slow downs and denial of service. This vulnerability is patched in 6.0.16 or 7.0.3. Workarounds include disabling the affected protocol app-layer parser in the yaml and reducing the stream.reassembly.depth value helps reduce the severity of the issue.
- Record
CVE-2024-23836- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-770
- Updated
- 2026-11-02
OSV 7.5
crafted traffic can cause denial of service
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 6.0.16 and 7.0.3, an attacker can craft traffic to cause Suricata to use far more CPU and memory for processing the traffic than needed, which can lead to extreme slow downs and denial of service. This vulnerability is patched in 6.0.16 or 7.0.3. Workarounds include disabling the affected protocol app-layer parser in the yaml and reducing the stream.reassembly.depth value helps reduce the severity of the issue.
- Record
CVE-2024-23836- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-770
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2024-23836 7.5
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 6.0.16 and 7.0.3, an attacker can craft traffic to cause Suricata to use far more CPU and memory for processing the traffic than needed, which can lead to extreme slow downs and denial of service. This vulnerability is patched in 6.0.16 or 7.0.3. Workarounds include disabling the affected protocol app-layer parser in the yaml and reducing the stream.reassembly.depth value helps reduce the severity of the issue.
- Record
DEBIAN-CVE-2024-23836- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2024-23836 7.5
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 6.0.16 and 7.0.3, an attacker can craft traffic to cause Suricata to use far more CPU and memory for processing the traffic than needed, which can lead to extreme slow downs and denial of service. This vulnerability is patched in 6.0.16 or 7.0.3. Workarounds include disabling the affected protocol app-layer parser in the yaml and reducing the stream.reassembly.depth value helps reduce the severity of the issue.
- Record
UBUNTU-CVE-2024-23836- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVopenSUSE-SU-2025:15394-1No score
libsuricata8_0_0-8.0.0-1.1 on GA media
These are all security issues fixed in the libsuricata8_0_0-8.0.0-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2025:15394-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
suricataDebian:13 | before 1:7.0.3-1 | 1:7.0.3-1 |
suricataDebian:14 | before 1:7.0.3-1 | 1:7.0.3-1 |
suricataUbuntu:16.04:LTS | All versions, plus listed versions 2.0.8-1build12.0.9-12.0.10-12.0.10-22.0.11-13.0-1 | None known |
suricataUbuntu:18.04:LTS | All versions, plus listed versions 3.2-2ubuntu3 | None known |
suricataUbuntu:22.04:LTS | All versions, plus listed versions 1:6.0.4-21:6.0.4-3 | None known |
suricataUbuntu:24.04:LTS | All versions, plus listed versions 1:7.0.0-21:7.0.2-11:7.0.2-1build11:7.0.3-1build11:7.0.3-1build3 | None known |
suricataUbuntu:25.10 | All versions, plus listed versions 1:7.0.8-21:7.0.10-1 | None known |
suricataUbuntu:26.10 | All versions, plus listed versions 1:8.0.3-11:8.0.5-11:8.0.6-1 | None known |
suricataUbuntu:26.04:LTS | All versions, plus listed versions 1:7.0.10-11:8.0.1-3build11:8.0.2-11:8.0.2-1build11:8.0.3-1 | None known |
suricataopenSUSE:Tumbleweed From an advisory covering 30 CVEs | before 8.0.0-1.1 | 8.0.0-1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases, published | EUVD | |
| first indexed | CVE List, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-23836 is a high vulnerability (CVSS 7.5) in Oisf Suricata, published February 26, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.16%, the 67th percentile. Fixed in suricata 1:7.0.3-1.
References
github.com/OISF/suricata/security/advisories/GHSA-q33q-45cr-3cpc
github.com/OISF/suricata/commit/18841a58da71e735ddf4e52cbfa6989755ecbeb7
github.com/OISF/suricata/commit/2a2120ecf10c5b5713ec2bf59469fe57f7b5b747
github.com/OISF/suricata/commit/83c5567ea7b0b28376f57dcfee9c6301448c7bc7
github.com/OISF/suricata/commit/8efaebe293e2a74c8e323fa85a6f5fadf82801bc
github.com/OISF/suricata/commit/97953998d2d60673ed6c30ddfb6a2d59b4230f97
Show 48 moreShow less
github.com/OISF/suricata/commit/b1549e930f6426eeff43f12b672337cbcda566b8
github.com/OISF/suricata/commit/cd035d59e3df157b606f4fe67324ea8e437be786
github.com/OISF/suricata/commit/ce9b90326949c94a46611d6394e28600ee5e8bd5
github.com/OISF/suricata/commit/e7e28822f473320658d6125f16ac3f0524baff01
github.com/OISF/suricata/commit/f9de1cca6182e571f1c02387dca6e695e55608af
redmine.openinfosecfoundation.org/issues/6531
redmine.openinfosecfoundation.org/issues/6532
redmine.openinfosecfoundation.org/issues/6540
redmine.openinfosecfoundation.org/issues/6658
redmine.openinfosecfoundation.org/issues/6659
redmine.openinfosecfoundation.org/issues/6660
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GOCOBFUTIFHOP2PZOH4ENRFXRBHIRKK4
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZXJIT7R53ZXROO3I256RFUWTIW4ECK6P
github.com/CVEProject/cvelistV5/tree/main/cves/2024/23xxx/CVE-2024-23836.json
nvd.nist.gov/vuln/detail/CVE-2024-23836
security-tracker.debian.org/tracker/CVE-2024-23836
ubuntu.com/security/CVE-2024-23836
cve.org/CVERecord?id=CVE-2024-23836
suse.com/security/cve/CVE-2016-10728
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