Description
Stack-based buffer overflow in the SmilTimeValue::parseWallClockValue function in smlprstime.cpp in RealNetworks RealPlayer 10, 10.1, and possibly 10.5, RealOne Player, RealPlayer Enterprise, and Helix Player 10.5-GOLD and 10.0.5 through 10.0.8, allows remote attackers to execute arbitrary code via an SMIL (SMIL2) file with a long wallclock value.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | RealPlayer | 10.0.9-3.el5 | RHSA-2007:0841 |
| RHEL 4 | HelixPlayer | 1:1.0.6-0.EL4.2 | RHSA-2007:0605 |
| RHEL 3 | realplayer | 10.0.9-0.rhel3.4 | RHSA-2007:0841 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Exploit-DB 1
- RealNetworks RealPlayer/HelixPlayer - SMIL wallclock Stack Overflow (PoC) EDB-4118 · dos · Jun 27, 2007 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 2
- RHSA-2007:0841 Red Hat Security Advisory: RealPlayer security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2007:0605 Red Hat Security Advisory: HelixPlayer security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
References
- http://service.real.com/realplayer/security/10252007_player/en/
- oval:org.mitre.oval:def:10554 vdb-entry signature
- 20070626 RealNetworks RealPlayer/HelixPlayer SMIL wallclock Stack Overflow Vulnerability third-party-advisory
- 26463 third-party-advisory
- GLSA-200709-05 vendor-advisory
- 24658 vdb-entry
- ADV-2007-2339 vdb-entry
- realplayer-smiltime-wallclockvalue-bo(35088) vdb-entry
- RHSA-2007:0841 vendor-advisory
- 26828 third-party-advisory
- 38342 vdb-entry
- VU#770904 third-party-advisory
- RHSA-2007:0605 vendor-advisory
- 25859 third-party-advisory
- 37374 vdb-entry
- 20071030 RealPlayer Updates of October 25, 2007 mailing-list
- ADV-2007-3628 vdb-entry
- 25819 third-party-advisory
- 1018297 vdb-entry
- 27361 third-party-advisory
- 1018299 vdb-entry