The Open Phone Abstraction Library (opal), as used by (1) Ekiga before 2.0.10 and (2) OpenH323 before 2.2.4, allows remote attackers to…

Description

The Open Phone Abstraction Library (opal), as used by (1) Ekiga before 2.0.10 and (2) OpenH323 before 2.2.4, allows remote attackers to cause a denial of service (crash) via an invalid Content-Length header field in Session Initiation Protocol (SIP) packets, which causes a \0 byte to be written to an "attacker-controlled address."

Scores

EPSS (exploitation in 30 days)

10.7% · top 4.2% of all CVEs (4 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.

Weakness

• n/a
• CWE-20 (opens in a new tab)All about CWE-20 and its CVEs

Affected products

• n/a

  • affected n/a

References (22)

• 27118 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 27271 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 1018776 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• 25955 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• 27129 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• MDKSA-2007:205 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=296371 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 28380 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 41637 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
• RHSA-2007:0957 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• [ekiga-list] 20070917 [ANNOUNCE] Ekiga 2.0.10 released (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• USN-562-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• oval:org.mitre.oval:def:11398 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• http://www.s21sec.com/avisos/s21sec-037-en.txt (opens in a new tab)x_refsource_MISCx_transferred
• 20071011 S21SEC-037-en: OPAL SIP Protocol Remote Denial of Service (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• SUSE-SR:2007:021 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• ADV-2007-3413 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• ADV-2007-3414 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 9240 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
• 27524 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://openh323.cvs.sourceforge.net/openh323/opal/src/sip/sippdu.cxx?r1=2.83.2.19&r2=2.83.2.20 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 27128 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2007-4924](https://trackcve.app/badge/CVE-2007-4924.svg)](https://trackcve.app/cve/CVE-2007-4924)

Record last updated 7 Aug 2024, 15:08 UTC.