CVE-2023-52389
UTF32Encoding.cpp in POCO has a Poco::UTF32Encoding integer overflow and resultant stack buffer...
CVE-2023-52389 is a critical vulnerability (CVSS 9.8) in Pocoproject Poco, published January 27, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.85%, the 58th percentile. Fixed in poco 1.11.0-3+deb12u1.
- Severity
- 9.8 CriticalCVSS 3.1, NVD
- Exploit chance
- 0.85%EPSS, 58th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
1.11.0-3+deb12u1poco +16 more
Description
UTF32Encoding.cpp in POCO has a Poco::UTF32Encoding integer overflow and resultant stack buffer overflow because Poco::UTF32Encoding::convert() and Poco::UTF32::queryConvert() may return a negative integer if a UTF-32 byte sequence evaluates to a value of 0x80000000 or higher. This is fixed in 1.11.8p2, 1.12.5p2, and 1.13.0.
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
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
pocoDebian:12 | before 1.11.0-3+deb12u1, plus listed versions 1.11.0-3 | 1.11.0-3+deb12u1 |
pocoDebian:13 | before 1.13.0-6 | 1.13.0-6 |
pocoDebian:14 | before 1.13.0-6 | 1.13.0-6 |
pocoDebian:11 | before 1.10.0-6+deb11u2, plus listed versions 1.10.0-61.10.0-6+deb11u1 | 1.10.0-6+deb11u2 |
pocoopenEuler:24.03-LTS-SP1 | before 1.12.5p2-2.oe2403sp1 | 1.12.5p2-2.oe2403sp1 |
pocoopenEuler:24.03-LTS-SP3 | before 1.12.5p2-3.oe2403sp3 | 1.12.5p2-3.oe2403sp3 |
pocoopenEuler:22.03-LTS-SP4 | before 1.10.1-3.oe2203sp4 | 1.10.1-3.oe2203sp4 |
pocoUbuntu:14.04:LTS | All versions, plus listed versions 1.3.6p1-41.3.6p1-4+deb7u1build1 | None known |
pocoUbuntu:16.04:LTS | All versions, plus listed versions 1.3.6p1-5.11.3.6p1-5.1build11.3.6p1-5.1ubuntu0.1 | None known |
pocoUbuntu:18.04:LTS | All versions, plus listed versions 1.7.8+dfsg1-21.7.8+dfsg1-31.8.0.1-1ubuntu4 | None known |
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| Package | Affected | Fixed |
|---|---|---|
pocoUbuntu:20.04:LTS | All versions, plus listed versions 1.9.2-3ubuntu21.9.2-3ubuntu3 | None known |
pocoUbuntu:22.04:LTS | All versions, plus listed versions 1.10.0-61.11.0-3 | None known |
pocoUbuntu:24.04:LTS | All versions, plus listed versions 1.11.0-31.11.0-41.11.0-4.11.11.0-4.1build11.11.0-4.1build2 | None known |
pocoUbuntu:25.10 | All versions, plus listed versions 1.13.0-6build2 | None known |
pocoUbuntu:26.10 | All versions, plus listed versions 1.14.2-31.14.2-61.14.2-6ubuntu11.14.2-6ubuntu2 | None known |
pocoUbuntu:26.04:LTS | All versions, plus listed versions 1.13.0-6build21.14.2-3 | None known |
pocoopenSUSE:Tumbleweed From an advisory covering 2 CVEs | before 1.14.2-1.1 | 1.14.2-1.1 |
What each source reports
NVD Score used
UTF32Encoding.cpp in POCO has a Poco::UTF32Encoding integer overflow and resultant stack buffer overflow because Poco::UTF32Encoding::convert() and Poco::UTF32::queryConvert() may return a negative integer if a UTF-32 byte sequence evaluates to a value of 0x80000000 or higher. This is fixed in 1.11.8p2, 1.12.5p2, and 1.13.0.
- Record
CVE-2023-52389- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-190
- Updated
- 2026-11-02
CVE List
UTF32Encoding.cpp in POCO has a Poco::UTF32Encoding integer overflow and resultant stack buffer overflow because Poco::UTF32Encoding::convert() and Poco::UTF32::queryConvert() may return a negative integer if a UTF-32 byte sequence evaluates to a value of 0x80000000 or higher. This is fixed in 1.11.8p2, 1.12.5p2, and 1.13.0.
- Record
CVE-2023-52389- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-190
- Updated
- 2026-11-02
EUVDEUVD-2023-57045
UTF32Encoding.cpp in POCO has a Poco::UTF32Encoding integer overflow and resultant stack buffer overflow because Poco::UTF32Encoding::convert() and Poco::UTF32::queryConvert() may return a negative integer if a UTF-32 byte sequence evaluates to a value of 0x80000000 or higher. This is fixed in 1.11.8p2, 1.12.5p2, and 1.13.0.
- Record
EUVD-2023-57045- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-3g75-6vfp-4hm3
UTF32Encoding.cpp in POCO has a Poco::UTF32Encoding integer overflow and resultant stack buffer...
UTF32Encoding.cpp in POCO has a Poco::UTF32Encoding integer overflow and resultant stack buffer overflow because Poco::UTF32Encoding::convert() and Poco::UTF32::queryConvert() may return a negative integer if a UTF-32 byte sequence evaluates to a value of 0x80000000 or higher. This is fixed in 1.11.8p2, 1.12.5p2, and 1.13.0.
- Record
GHSA-3g75-6vfp-4hm3- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-190
- Updated
- 2026-11-02
OSV
UTF32Encoding.cpp in POCO has a Poco::UTF32Encoding integer overflow and resultant stack buffer overflow because Poco::UTF32Encoding::convert() and Poco::UTF32::queryConvert() may return a negative integer if a UTF-32 byte sequence evaluates to a value of 0x80000000 or higher. This is fixed in 1.11.8p2, 1.12.5p2, and 1.13.0.
- Record
CVE-2023-52389- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2023-52389
UTF32Encoding.cpp in POCO has a Poco::UTF32Encoding integer overflow and resultant stack buffer overflow because Poco::UTF32Encoding::convert() and Poco::UTF32::queryConvert() may return a negative integer if a UTF-32 byte sequence evaluates to a value of 0x80000000 or higher. This is fixed in 1.11.8p2, 1.12.5p2, and 1.13.0.
- Record
DEBIAN-CVE-2023-52389- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
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OSVOESA-2026-3963
poco security update
This is ROS melodic ros_comm's 3rdparty poco.
Security Fix(es):
UTF32Encoding.cpp in POCO has a Poco::UTF32Encoding integer overflow and resultant stack buffer overflow because Poco::UTF32Encoding::convert() and Poco::UTF32::queryConvert() may return a negative integer if a UTF-32 byte sequence evaluates to a value of 0x80000000 or higher. This is fixed in 1.11.8p2, 1.12.5p2, and 1.13.0.(CVE-2023-52389)
- Record
OESA-2026-3963- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVOESA-2026-3964
poco security update
This is ROS melodic ros_comm's 3rdparty poco.
Security Fix(es):
UTF32Encoding.cpp in POCO has a Poco::UTF32Encoding integer overflow and resultant stack buffer overflow because Poco::UTF32Encoding::convert() and Poco::UTF32::queryConvert() may return a negative integer if a UTF-32 byte sequence evaluates to a value of 0x80000000 or higher. This is fixed in 1.11.8p2, 1.12.5p2, and 1.13.0.(CVE-2023-52389)
- Record
OESA-2026-3964- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVOESA-2026-3965
poco security update
This is ROS melodic ros_comm's 3rdparty poco.
Security Fix(es):
UTF32Encoding.cpp in POCO has a Poco::UTF32Encoding integer overflow and resultant stack buffer overflow because Poco::UTF32Encoding::convert() and Poco::UTF32::queryConvert() may return a negative integer if a UTF-32 byte sequence evaluates to a value of 0x80000000 or higher. This is fixed in 1.11.8p2, 1.12.5p2, and 1.13.0.(CVE-2023-52389)
- Record
OESA-2026-3965- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2023-52389
UTF32Encoding.cpp in POCO has a Poco::UTF32Encoding integer overflow and resultant stack buffer overflow because Poco::UTF32Encoding::convert() and Poco::UTF32::queryConvert() may return a negative integer if a UTF-32 byte sequence evaluates to a value of 0x80000000 or higher. This is fixed in 1.11.8p2, 1.12.5p2, and 1.13.0.
- Record
UBUNTU-CVE-2023-52389- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVopenSUSE-SU-2025:15322-1No score
libPocoActiveRecord112-1.14.2-1.1 on GA media
These are all security issues fixed in the libPocoActiveRecord112-1.14.2-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2025:15322-1- Updated
- 2026-11-02
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.
References
pocoproject.org/blog?p=1226
github.com/pocoproject/poco/issues/4320
lists.debian.org/debian-lts-announce/2025/01/msg00017.html
nvd.nist.gov/vuln/detail/CVE-2023-52389
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security-tracker.debian.org/tracker/CVE-2023-52389
openeuler.org/zh/security/security-bulletins/detail?id=openEuler-SA-2026-3963
ubuntu.com/security/CVE-2023-52389
cve.org/CVERecord?id=CVE-2023-52389
suse.com/security/cve/CVE-2023-52389