CVE-2023-27787
An issue found in TCPprep v.4.4.3 allows a remote attacker to cause a denial of service via the...
An issue found in TCPprep v.4.4.3 allows a remote attacker to cause a denial of service via the parse_list function at the list.c:81 endpoint.
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
NVD Score used
7.5
An issue found in TCPprep v.4.4.3 allows a remote attacker to cause a denial of service via the parse_list function at the list.c:81 endpoint.
- Record
CVE-2023-27787- 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-476
- Updated
- 2026-11-02
CVE List
7.5
An issue found in TCPprep v.4.4.3 allows a remote attacker to cause a denial of service via the parse_list function at the list.c:81 endpoint.
- Record
CVE-2023-27787- 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-476
- Updated
- 2026-11-02
EUVDEUVD-2023-31523
7.5
An issue found in TCPprep v.4.4.3 allows a remote attacker to cause a denial of service via the parse_list function at the list.c:81 endpoint.
- Record
EUVD-2023-31523- 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
GitHub AdvisoriesGHSA-85q7-h847-vf82
7.5
An issue found in TCPprep v.4.4.3 allows a remote attacker to cause a denial of service via the...
An issue found in TCPprep v.4.4.3 allows a remote attacker to cause a denial of service via the parse_list function at the list.c:81 endpoint.
- Record
GHSA-85q7-h847-vf82- 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-476
- Updated
- 2026-11-02
OSV
7.5
An issue found in TCPprep v.4.4.3 allows a remote attacker to cause a denial of service via the parse_list function at the list.c:81 endpoint.
- Record
CVE-2023-27787- 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
OSVDEBIAN-CVE-2023-27787
7.5
An issue found in TCPprep v.4.4.3 allows a remote attacker to cause a denial of service via the parse_list function at the list.c:81 endpoint.
- Record
DEBIAN-CVE-2023-27787- 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-2023-27787
7.5
An issue found in TCPprep v.4.4.3 allows a remote attacker to cause a denial of service via the parse_list function at the list.c:81 endpoint.
- Record
UBUNTU-CVE-2023-27787- 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
OSVMGASA-2023-0188 No score
Updated tcpreplay packages fix security vulnerability
An issue found in TCPreplay tcprewrite v.4.4.3 allows a remote attacker to cause a denial of service via the tcpedit_dlt_cleanup function at plugins/dlt_plugins.c. (CVE-2023-27783)
An issue found in TCPReplay v.4.4.3 allows a remote attacker to cause a denial of service via the read_hexstring function at the utils.c:309 endpoint. (CVE-2023-27784)
An issue found in TCPreplay TCPprep v.4.4.3 allows a remote attacker to cause a denial of service via the parse endpoints function. (CVE-2023-27785)
An issue found in TCPprep v.4.4.3 allows a remote attacker to cause a denial of service via the macinstring function. (CVE-2023-27786)
An issue found in TCPprep v.4.4.3 allows a remote attacker to cause a denial of service via the parse_list function at the list.c:81 endpoint. (CVE-2023-27787)
An issue found in TCPrewrite v.4.4.3 allows a remote attacker to cause a denial of service via the ports2PORT function at the portmap.c:69 endpoint. (CVE-2023-27788)
An issue found in TCPprep v.4.4.3 allows a remote attacker to cause a denial of service via the cidr2cidr function at the cidr.c:178 endpoint. (CVE-2023-27789)
- Record
MGASA-2023-0188- Updated
- 2026-11-02
OSVUSN-7231-1 No score
tcpreplay vulnerabilities
It was discovered that Tcpreplay incorrectly handled memory when using the tcprewrite utility. A remote attacker could possibly use this issue to cause Tcpreplay to crash, resulting in a denial of service. (CVE-2023-27783)
It was discovered that Tcpreplay incorrectly validated external input. A remote attacker could possibly use this issue to cause Tcpreplay to crash, resulting in a denial of service. (CVE-2023-27784, CVE-2023-27785, CVE-2023-27786, CVE-2023-27787, CVE-2023-27788, CVE-2023-27789)
It was discovered that Tcpreplay incorrectly handled memory when using the tcprewrite utility. An attacker could possibly use this issue to cause Tcpreplay to crash, resulting in a denial of service. (CVE-2023-4256, CVE-2023-43279)
- Record
USN-7231-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
tcpreplayDebian:12 |
All versions, plus listed versions 4.4.3-14.4.4-14.5.1-14.5.2-14.5.3-14.5.4-1 |
None known |
tcpreplayDebian:13 |
before 4.4.4-1 | 4.4.4-1 |
tcpreplayDebian:14 |
before 4.4.4-1 | 4.4.4-1 |
tcpreplayMageia:8 From an advisory covering 7 CVEs |
before 4.4.2-1.1.mga8 | 4.4.2-1.1.mga8 |
tcpreplayUbuntu:Pro:16.04:LTS |
before 3.4.4-2+deb8u1ubuntu0.1~esm3, plus listed versions 3.4.4-23.4.4-2+deb8u1build0.16.04.13.4.4-2+deb8u1ubuntu0.1~esm13.4.4-2+deb8u1ubuntu0.1~esm2 |
3.4.4-2+deb8u1ubuntu0.1~esm3 |
tcpreplayUbuntu:Pro:18.04:LTS |
before 4.2.6-1ubuntu0.1~esm5, plus listed versions 4.2.6-14.2.6-1ubuntu0.1~esm14.2.6-1ubuntu0.1~esm24.2.6-1ubuntu0.1~esm34.2.6-1ubuntu0.1~esm4 |
4.2.6-1ubuntu0.1~esm5 |
tcpreplayUbuntu:Pro:20.04:LTS |
before 4.3.2-1ubuntu0.1~esm3, plus listed versions 4.3.2-1build14.3.2-1ubuntu0.1~esm14.3.2-1ubuntu0.1~esm2 |
4.3.2-1ubuntu0.1~esm3 |
tcpreplayUbuntu:Pro:22.04:LTS |
before 4.3.4-1ubuntu0.1~esm2, plus listed versions 4.3.3-24.3.4-14.3.4-1ubuntu0.1~esm1 |
4.3.4-1ubuntu0.1~esm2 |
tcpreplayUbuntu:Pro:16.04:LTS From an advisory covering 9 CVEs |
before 3.4.4-2+deb8u1ubuntu0.1~esm3, plus listed versions 3.4.4-23.4.4-2+deb8u1build0.16.04.13.4.4-2+deb8u1ubuntu0.1~esm13.4.4-2+deb8u1ubuntu0.1~esm2 |
3.4.4-2+deb8u1ubuntu0.1~esm3 |
tcpreplayUbuntu:Pro:18.04:LTS From an advisory covering 9 CVEs |
before 4.2.6-1ubuntu0.1~esm5, plus listed versions 4.2.6-14.2.6-1ubuntu0.1~esm14.2.6-1ubuntu0.1~esm24.2.6-1ubuntu0.1~esm34.2.6-1ubuntu0.1~esm4 |
4.2.6-1ubuntu0.1~esm5 |
tcpreplayUbuntu:Pro:20.04:LTS From an advisory covering 9 CVEs |
before 4.3.2-1ubuntu0.1~esm3, plus listed versions 4.3.2-1build14.3.2-1ubuntu0.1~esm14.3.2-1ubuntu0.1~esm2 |
4.3.2-1ubuntu0.1~esm3 |
tcpreplayUbuntu:Pro:22.04:LTS From an advisory covering 9 CVEs |
before 4.3.4-1ubuntu0.1~esm2, plus listed versions 4.3.3-24.3.4-14.3.4-1ubuntu0.1~esm1 |
4.3.4-1ubuntu0.1~esm2 |
tcpreplayUbuntu:Pro:24.04:LTS From an advisory covering 9 CVEs |
before 4.4.4-1ubuntu0.1~esm1, plus listed versions 4.4.3-14.4.4-14.4.4-1build14.4.4-1build2 |
4.4.4-1ubuntu0.1~esm1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-27787 is a high vulnerability (CVSS 7.5) in Broadcom Tcpreplay, published March 16, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.48%, the 74th percentile. Fixed in tcpreplay 4.4.4-1.
References
github.com/appneta/tcpreplay/issues/788
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UE3J4LKYFNKPKNSLDQK4JG36THQMQH3V
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R3ER3YTFR3XIDMYEB7LMFWFTPVQALBHC
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UK2BRH3W3ECF5FDXP6QM3ZEDTHIOE4M5
nvd.nist.gov/vuln/detail/CVE-2023-27787
lists.fedoraproject.org/archives/list/[email protected]/message/R3ER3YTFR3XIDMYEB7LMFWFTPVQALBHC
Show 19 moreShow less
lists.fedoraproject.org/archives/list/[email protected]/message/UE3J4LKYFNKPKNSLDQK4JG36THQMQH3V
lists.fedoraproject.org/archives/list/[email protected]/message/UK2BRH3W3ECF5FDXP6QM3ZEDTHIOE4M5
github.com/advisories/GHSA-85q7-h847-vf82
github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27787.json
security-tracker.debian.org/tracker/CVE-2023-27787
advisories.mageia.org/MGASA-2023-0188.html
bugs.mageia.org/show_bug.cgi?id=31926
lists.fedoraproject.org/archives/list/[email protected]/thread/UE3J4LKYFNKPKNSLDQK4JG36THQMQH3V
ubuntu.com/security/CVE-2023-27787
cve.org/CVERecord?id=CVE-2023-27787
ubuntu.com/security/notices/USN-7231-1
ubuntu.com/security/CVE-2023-4256
ubuntu.com/security/CVE-2023-27783
ubuntu.com/security/CVE-2023-27784
ubuntu.com/security/CVE-2023-27785
ubuntu.com/security/CVE-2023-27786
ubuntu.com/security/CVE-2023-27788
ubuntu.com/security/CVE-2023-27789
ubuntu.com/security/CVE-2023-43279