Description
The encryption-processing feature in Cisco libSRTP before 1.5.3 allows remote attackers to cause a denial of service via crafted fields in SRTP packets, aka Bug ID CSCux00686.
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.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 8 | srtp | 1.4.5~20130609~dfsg-1.1+deb8u1 | DSA-3539-1 |
| Debian 7 | srtp | 1.4.4+20100615~dfsg-2+deb7u2 | DSA-3539-1 |
| Debian 6.0 | srtp | 1.4.4~dfsg-6+deb6u2 | DLA-393-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | libsrtp +1 | 1.4.4-11.20101004cvs.el7 | RHSA-2020:3873 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libsrtp | 1.5.4-2.1 | openSUSE-SU-2024:10997-1, openSUSE-SU-2024:10265-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | libsrtp +1 | 1.4.4-11.20101004cvs.amzn2 | ALAS2-2020-1530 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | libsrtp +1 | 1.4.4-11.20101004cvs.el7 | ELSA-2020-3873 |
Advisories 7
- RHSA-2020:3873 Red Hat Security Advisory: libsrtp security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DLA-393-1 srtp - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3539-1 srtp - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10997-1 libsrtp2-1-2.4.1-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10265-1 libsrtp-devel-1.5.4-2.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2-2020-1530 Moderate: libsrtp security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 22, 2020
- ELSA-2020-3873 Moderate: libsrtp security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 6, 2020