CVE-2017-9545: The next_text function in src/libmpg123/id3.c in mpg123 1.24.0 allows remote attackers to cause a denial of se

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MEDIUM 5.5DOWNGRADE

CVE-2017-9545 is a medium-severity flaw (CVSS 5.5) affecting mpg123. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The next_text function in src/libmpg123/id3.c in mpg123 1.24.0 allows remote attackers to cause a denial of service (buffer over-read) via a crafted mp3 file.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.2% (top 32%)
CISA exploited list	No
Weakness	CWE-125
Published	2017-07-27
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: mpg123

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-07-27 06:29 UTCPublished CVE record published
2026-06-17 01:28 UTCUpdated Record last modified

mpg123 mpg123 DOWNGRADE

Affected: 1.24.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.24.0

1. Check installed version

apt-cache policy mpg123 || rpm -q mpg123 || mpg123 --version

2. No fixed release: DOWNGRADE to a release before 1.24.0 (Debian / Ubuntu)

apt-cache madison mpg123 sudo apt install mpg123=<VERSION_BEFORE_1.24.0> sudo apt-mark hold mpg123

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list mpg123 sudo dnf downgrade mpg123-<VERSION_BEFORE_1.24.0> sudo dnf versionlock add mpg123

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-9545?

mpg123: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-9545 being exploited?

CVE-2017-9545 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-9545 affect?

CVE-2017-9545 affects mpg123. Severity is medium (CVSS 5.5). The next_text function in src/libmpg123/id3.c in mpg123 1.24.0 allows remote attackers to cause a denial of service (buffer over-read) via a crafted mp3 file.

How urgent is CVE-2017-9545?

Priority 41/100. Public exploit reference

Related CVEs

CVE-2017-12839 HIGH 8.3 UPGRADE A heap-based buffer over-read in the getbits function in src/libmpg123/getbits.h in mpg123 through 1.25.5 allo
CVE-2017-12797 MEDIUM 5.5 UPGRADE Integer overflow in the INT123_parse_new_id3 function in the ID3 parser in mpg123 before 1.25.5 on 32-bit plat
CVE-2017-11126 MEDIUM 5.5 UPGRADE The III_i_stereo function in libmpg123/layer3.c in mpg123 through 1.25.1 allows remote attackers to cause a de
CVE-2017-10683 HIGH 7.5 DOWNGRADE In mpg123 1.25.0, there is a heap-based buffer over-read in the convert_latin1 function in libmpg123/id3.c
CVE-2014-9497 HIGH 7.5 UPGRADE Buffer overflow in mpg123 before 1.18.0.

References

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