CVE-2010-1623
CVE-2010-1623 is a medium-severity vulnerability in Apache Apr-util with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 20% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.
Key facts
- Severity: Medium (CVSS 2.0 base score 5.0)
- EPSS exploit prediction: 20% (97th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Apache Apr-util
- Published:
- Last modified:
Description
Memory leak in the apr_brigade_split_line function in buckets/apr_brigade.c in the Apache Portable Runtime Utility library (aka APR-util) before 1.3.10, as used in the mod_reqtimeout module in the Apache HTTP Server and other software, allows remote attackers to cause a denial of service (memory consumption) via unspecified vectors related to the destruction of an APR bucket.
Frequently asked questions
- What is CVE-2010-1623?
- Memory leak in the apr_brigade_split_line function in buckets/apr_brigade.c in the Apache Portable Runtime Utility library (aka APR-util) before 1.3.10, as used in the mod_reqtimeout module in the Apache HTTP Server and other software, allows remote attackers to cause a denial of service (memory consumption) via unspecified vectors related to the destruction of an APR bucket.
- How severe is CVE-2010-1623?
- CVE-2010-1623 has a CVSS 2.0 base score of 5.0, rated medium severity.
- Is CVE-2010-1623 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2010-1623?
- CVE-2010-1623 primarily affects Apache Apr-util. In total, 44 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2010-1623?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2010-1623 published?
- CVE-2010-1623 was published on 2010-10-04 and last updated on 2026-06-16.
References
- http://blogs.sun.com/security/entry/cve_2010_1623_memory_leak
- http://lists.fedoraproject.org/pipermail/package-announce/2010-October/049885.html
- http://lists.fedoraproject.org/pipermail/package-announce/2010-October/049939.html
- http://lists.opensuse.org/opensuse-security-announce/2011-11/msg00011.html
- http://marc.info/?l=bugtraq&m=130168502603566&w=2
- http://secunia.com/advisories/41701
- http://secunia.com/advisories/42015
- http://secunia.com/advisories/42361
- http://secunia.com/advisories/42367
- http://secunia.com/advisories/42403
- http://secunia.com/advisories/42537
- http://secunia.com/advisories/43211
- http://secunia.com/advisories/43285
- http://security-tracker.debian.org/tracker/CVE-2010-1623
- http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.627828
- http://svn.apache.org/viewvc?view=revision&revision=1003492
- http://svn.apache.org/viewvc?view=revision&revision=1003493
- http://svn.apache.org/viewvc?view=revision&revision=1003494
- http://svn.apache.org/viewvc?view=revision&revision=1003495
- http://svn.apache.org/viewvc?view=revision&revision=1003626
- http://ubuntu.com/usn/usn-1021-1
- http://www-01.ibm.com/support/docview.wss?uid=swg1PM31601
- http://www.apache.org/dist/apr/CHANGES-APR-UTIL-1.3
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:192
- http://www.redhat.com/support/errata/RHSA-2010-0950.html
- http://www.redhat.com/support/errata/RHSA-2011-0896.html
- http://www.redhat.com/support/errata/RHSA-2011-0897.html
- http://www.securityfocus.com/bid/43673
- http://www.ubuntu.com/usn/USN-1022-1
- http://www.vupen.com/english/advisories/2010/2556
Affected products (44)
- cpe:2.3:a:apache:apr-util:*:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:0.9.1:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:0.9.2:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:0.9.3:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:0.9.4:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:0.9.5:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:0.9.6:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:0.9.7:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:0.9.8:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:0.9.9:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:0.9.10:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:0.9.11:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:0.9.12:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:0.9.13:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:0.9.14:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:0.9.15:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:0.9.16:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:0.9.17:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:0.9.18:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:1.0:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:1.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:1.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:1.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:1.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:1.1.2:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:1.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:1.2.2:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:1.2.6:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:1.2.7:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:1.2.8:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:1.2.9:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:1.2.10:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:1.2.12:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:1.2.13:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:1.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:1.3.1:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:1.3.2:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:1.3.3:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:1.3.4:*:*:*:*:*:*:*
- cpe:2.3:a:apache:apr-util:1.3.5:*:*:*:*:*:*:*
More vulnerabilities in Apache Apr-util
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- CVE-2026-32327 — Critical (CVSS 9.1): A bug in APR-util version 1.6.3 (and earlier) allows a stack recursion attack against any library consumer which parses…
- CVE-2026-34502 — High (CVSS 7.5): Heap-based Buffer Overflow vulnerability in Apache Portable Runtime Utility memcached client This issue affects Apache…
- CVE-2026-34501 — High (CVSS 7.5): Heap-based Buffer Overflow vulnerability in Apache Portable Runtime Utility redis client. This issue affects Apache…
- CVE-2025-49506 — High (CVSS 7.5): APR-util versions 1.6.3 (and earlier) function apr_password_validate() was not constant-time with regards to hashes or…
All CVEs affecting Apache Apr-util →
Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities
- CVE-2026-77946 — Critical (CVSS 10.0): A vulnerability was determined in TRENDnet TEW-821DAP 2.2.01b05. Affected by this vulnerability is the function…
- CVE-2026-76008 — Critical (CVSS 10.0): A flaw has been found in Comfast CF-N1-S 2.6.0.1. This affects the function get_para_from_uri of the file…
- CVE-2026-75784 — Critical (CVSS 10.0): A vulnerability was detected in TRENDnet TEW-WLC100 1v2.07b01. Affected by this issue is the function FUN_0040da4c of…
- CVE-2026-74843 — Critical (CVSS 10.0): A vulnerability was determined in Wavlink WN531P3 and WN535M1 V250922. Affected by this vulnerability is the function…
- CVE-2026-16367 — Critical (CVSS 10.0): Sandbox escape due to invalid pointer in the Disability Access APIs component. This vulnerability was fixed in Firefox…
- CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
Threat intelligence
Threat-intel indicators referencing this CVE:
- 103.20.122.54 (ipv4-addr)
- 222.99.52.202 (ipv4-addr)
- 221.161.235.168 (ipv4-addr)
- 124.6.178.98 (ipv4-addr)
- 121.78.158.30 (ipv4-addr)
- 103.84.236.242 (ipv4-addr)
- 144.22.150.242 (ipv4-addr)
- 41.224.62.206 (ipv4-addr)