CVE-2019-7317
png_image_free in png.c in libpng 1.6.x before 1.6.37 has a use-after-free because png_image_free_function is called under png_safe_execute.
02 Description
png_image_free in png.c in libpng 1.6.x before 1.6.37 has a use-after-free because png_image_free_function is called under png_safe_execute.
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 9.39% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 94.9% of scored records. A rank, not a probability.
- NVD base score
- 5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2019-02-04 07:00Z7 YR AGO
- Last updated
- 2026-05-28 18:24Z5 MO AGO
- Reserved
- 2019-02-04
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.3)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
- Weaknesses
- Data version
- 5.2
- Document digest
- f68f4450d35d69cfe1c0b24b3f3fa44bef25340eb798fbf34cac6dbeda9ec180
05 Affected products
06 References
- seclists.org20190417 [slackware-security] libpng (SSA:2019-107-01)https://seclists.org/bugtraq/2019/Apr/30
- www.debian.orgDSA-4435https://www.debian.org/security/2019/dsa-4435
- seclists.org20190429 [SECURITY] [DSA 4435-1] libpng1.6 security updatehttps://seclists.org/bugtraq/2019/Apr/36
- usn.ubuntu.comUSN-3962-1https://usn.ubuntu.com/3962-1/
- usn.ubuntu.comUSN-3991-1https://usn.ubuntu.com/3991-1/
- seclists.org20190522 [slackware-security] mozilla-firefox (SSA:2019-141-01)https://seclists.org/bugtraq/2019/May/56
- seclists.org20190523 [SECURITY] [DSA 4448-1] firefox-esr security updatehttps://seclists.org/bugtraq/2019/May/59
- www.debian.orgDSA-4448https://www.debian.org/security/2019/dsa-4448
- lists.debian.org[debian-lts-announce] 20190523 [SECURITY] [DLA 1800-1] firefox-esr security updatehttps://lists.debian.org/debian-lts-announce/2019/05/msg00032.html
- access.redhat.comRHSA-2019:1265https://access.redhat.com/errata/RHSA-2019:1265
- access.redhat.comRHSA-2019:1267https://access.redhat.com/errata/RHSA-2019:1267
- access.redhat.comRHSA-2019:1269https://access.redhat.com/errata/RHSA-2019:1269
- www.debian.orgDSA-4451https://www.debian.org/security/2019/dsa-4451
- seclists.org20190527 [SECURITY] [DSA 4451-1] thunderbird security updatehttps://seclists.org/bugtraq/2019/May/67
- lists.debian.org[debian-lts-announce] 20190527 [SECURITY] [DLA 1806-1] thunderbird security updatehttps://lists.debian.org/debian-lts-announce/2019/05/msg00038.html
- usn.ubuntu.comUSN-3997-1https://usn.ubuntu.com/3997-1/
- lists.opensuse.orgopenSUSE-SU-2019:1484http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00002.html
- access.redhat.comRHSA-2019:1310https://access.redhat.com/errata/RHSA-2019:1310
- access.redhat.comRHSA-2019:1308https://access.redhat.com/errata/RHSA-2019:1308
- access.redhat.comRHSA-2019:1309https://access.redhat.com/errata/RHSA-2019:1309
- lists.opensuse.orgopenSUSE-SU-2019:1534http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00029.html
- lists.opensuse.orgopenSUSE-SU-2019:1664http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00084.html
- www.securityfocus.com108098http://www.securityfocus.com/bid/108098
- usn.ubuntu.comUSN-4080-1https://usn.ubuntu.com/4080-1/
- usn.ubuntu.comUSN-4083-1https://usn.ubuntu.com/4083-1/
- security.gentoo.orgGLSA-201908-02https://security.gentoo.org/glsa/201908-02
- access.redhat.comRHSA-2019:2494https://access.redhat.com/errata/RHSA-2019:2494
- access.redhat.comRHSA-2019:2495https://access.redhat.com/errata/RHSA-2019:2495
- lists.opensuse.orgopenSUSE-SU-2019:1916http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00038.html
- lists.opensuse.orgopenSUSE-SU-2019:1912http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00044.html
- access.redhat.comRHSA-2019:2585https://access.redhat.com/errata/RHSA-2019:2585
- access.redhat.comRHSA-2019:2590https://access.redhat.com/errata/RHSA-2019:2590
- access.redhat.comRHSA-2019:2592https://access.redhat.com/errata/RHSA-2019:2592
- access.redhat.comRHSA-2019:2737https://access.redhat.com/errata/RHSA-2019:2737
- www.oracle.comhttps://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
- www.oracle.comhttps://www.oracle.com/security-alerts/cpuApr2021.html
- bugs.chromium.orghttps://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12803
- github.comhttps://github.com/glennrp/libpng/issues/275
- packetstormsecurity.comhttp://packetstormsecurity.com/files/152561/Slackware-Security-Advisory-libpng-Updates.html
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20190719-0005/
- support.hpe.comhttps://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03977en_us
- www.oracle.comhttps://www.oracle.com/security-alerts/cpuoct2021.html
07 Fixed in
Arch Linux
- firefox Fixed in 67.0-1
- libpng Fixed in 1.6.37-1
- thunderbird Fixed in 60.7.0-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
Debian 12
- firefox-esr Fixed in 60.7.0esr-1
- libpng1.6 Fixed in 1.6.36-4
- thunderbird Fixed in 1:60.7.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- firefox-esr Fixed in 60.7.0esr-1
- libpng1.6 Fixed in 1.6.36-4
- thunderbird Fixed in 1:60.7.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- firefox-esr Fixed in 60.7.0esr-1
- libpng1.6 Fixed in 1.6.36-4
- thunderbird Fixed in 1:60.7.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- firefox Fixed in 67.0+build2-0ubuntu0.16.04.1
- openjdk-8 Fixed in 8u222-b10-1ubuntu1~16.04.1
- openjdk-9 No fix yet
- thunderbird Fixed in 1:60.7.0+build1-0ubuntu0.16.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- firefox Fixed in 67.0+build2-0ubuntu0.18.04.1
- libpng1.6 Fixed in 1.6.34-1ubuntu0.18.04.2
- openjdk-8 Fixed in 8u222-b10-1ubuntu1~18.04.1
- openjdk-lts Fixed in 11.0.4+11-1ubuntu2~18.04.3
- thunderbird Fixed in 1:60.7.0+build1-0ubuntu0.18.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- libpng1.6 Fixed in 1.6.20-2ubuntu0.1~esm4Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.